For Napoli, there is no comparison between Lionel Messi and Diego Maradona.

Messi will finally play in the stadium where fellow Argentina great Maradona achieved some of his most memorable exploits. He and Barcelona will face Napoli at the San Paolo Stadium in the Champions League round of 16 on Tuesday.

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Barcelona's Lionel Messi celebrates after scoring his side's second goal during a Spanish La Liga soccer match between Barcelona and Eibar at the Camp Nou stadium in Barcelona, Spain, Saturday Feb. 22, 2020. (AP PhotoJoan Monfort)

For Napoli, there is no comparison between Lionel Messi and Diego Maradona.

Barcelona's Lionel Messi prepares to shoot to score his side's 2nd goal during a Spanish La Liga soccer match between Barcelona and Eibar at the Camp Nou stadium in Barcelona, Spain, Saturday Feb. 22, 2020. (AP PhotoJoan Monfort)

After leaving Barcelona, Maradona led Napoli to its only two Italian league titles, in 1987 and 1990. He also helped the club win the 1989 UEFA Cup.

Napoli's Lorenzo Insigne celebrates during the Italian Serie A soccer match between Napoli and Juventus at the Stadio San Paolo in Naples, Italy Sunday Jan. 26, 2020. (Fabrizio CorradettiLaPresse via AP)

“The experience of playing there will be very nice. People are very passionate there and they dreamed that if Maradona came there, why can’t Messi come? Yes, I know the Neapolitans are crazy about football. I had teammates that played there ... (they) told me that they live for this and I’m very excited about going there.”

Lorenzo Insigne of Napoli, centre, scores the first goal of the game against Lazio, during their Italian Cup Serie A quarterfinal soccer match at San Paolo stadium in Napoli, Italy, Tuesday Jan. 21, 2020. (LaPresse via AP)

Gattuso won the tournament twice as a player with Milan. His Rossoneri team came up against Messi’s Barcelona eight times — although they never faced each other because either him or Messi were always absent.

Napoli coach Gennaro Gattuso gesture during the Italian Serie A soccer match between Napoli and Lecce at the San Paolo stadium in Naples, Italy, Sunday, Feb. 9, 2020. (CafaroLaPresse via AP)

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Napoli coach Gennaro Gattuso shouts instructions during the Italian Serie A match between Lazio and Napoli at the Olympic stadium in Rome, Saturday, Jan. 11, 2020. (Alfredo FalconeLaPresse via AP)

Napoli coach Gennaro Gattuso shouts instructions during the Italian Serie A match between Lazio and Napoli at the Olympic stadium in Rome, Saturday, Jan. 11, 2020. (Alfredo FalconeLaPresse via AP)

Barcelona's head coach Quique Setien sits on the bench during La Liga soccer match between Betis and Barcelona at the Benito Villamarin stadium in Seville, Spain, Sunday, Feb. 9, 2020. (AP PhotoMiguel Morenatti)

Barcelona's head coach Quique Setien sits on the bench during La Liga soccer match between Betis and Barcelona at the Benito Villamarin stadium in Seville, Spain, Sunday, Feb. 9, 2020. (AP PhotoMiguel Morenatti)

Barcelona's head coach Quique Setien, right, applauds as Getafe's head coach Jose Bordalas turns away during a Spanish La Liga soccer match between Barcelona and Getafe at the Camp Nou stadium in Barcelona, Spain, Saturday Feb. 15, 2020. (AP PhotoG.Garin)

Barcelona's head coach Quique Setien, right, applauds as Getafe's head coach Jose Bordalas turns away during a Spanish La Liga soccer match between Barcelona and Getafe at the Camp Nou stadium in Barcelona, Spain, Saturday Feb. 15, 2020. (AP PhotoG.Garin)

“At the moment Messi is the strongest player in the world,” Napoli forward Lorenzo Insigne said. “But comparisons don’t exist for us, because for us Neapolitans, Maradona is sacred. Taking nothing away from Messi, who remains a really great champion.”

Barcelona's Lionel Messi celebrates after scoring his side's second goal during a Spanish La Liga soccer match between Barcelona and Eibar at the Camp Nou stadium in Barcelona, Spain, Saturday Feb. 22, 2020. (AP PhotoJoan Monfort)

Barcelona's Lionel Messi celebrates after scoring his side's second goal during a Spanish La Liga soccer match between Barcelona and Eibar at the Camp Nou stadium in Barcelona, Spain, Saturday Feb. 22, 2020. (AP PhotoJoan Monfort)

After leaving Barcelona, Maradona led Napoli to its only two Italian league titles, in 1987 and 1990. He also helped the club win the 1989 UEFA Cup.

Messi and Barcelona have never played against Napoli, and the 32-year-old Argentina star said recently he is excited to finally make it to San Paolo Stadium.

“I have wanted to go to that stadium for a long time, but we have never had the chance,” Messi said. “Finally, the moment has come and I’m very excited to see what it’s like, even if it’s different now.

Barcelona's Lionel Messi prepares to shoot to score his side's 2nd goal during a Spanish La Liga soccer match between Barcelona and Eibar at the Camp Nou stadium in Barcelona, Spain, Saturday Feb. 22, 2020. (AP PhotoJoan Monfort)

Barcelona's Lionel Messi prepares to shoot to score his side's 2nd goal during a Spanish La Liga soccer match between Barcelona and Eibar at the Camp Nou stadium in Barcelona, Spain, Saturday Feb. 22, 2020. (AP PhotoJoan Monfort)

“The experience of playing there will be very nice. People are very passionate there and they dreamed that if Maradona came there, why can’t Messi come? Yes, I know the Neapolitans are crazy about football. I had teammates that played there ... (they) told me that they live for this and I’m very excited about going there.”

Both teams changed their coaches after the group stage, with Gennaro Gattuso replacing Carlo Ancelotti at Napoli in December and Quique Setién taking over from Ernesto Valverde in January.

Both will be debuting in the Champions League as a coach.

Napoli's Lorenzo Insigne celebrates during the Italian Serie A soccer match between Napoli and Juventus at the Stadio San Paolo in Naples, Italy Sunday Jan. 26, 2020. (Fabrizio CorradettiLaPresse via AP)

Napoli's Lorenzo Insigne celebrates during the Italian Serie A soccer match between Napoli and Juventus at the Stadio San Paolo in Naples, Italy Sunday Jan. 26, 2020. (Fabrizio CorradettiLaPresse via AP)

Gattuso won the tournament twice as a player with Milan. His Rossoneri team came up against Messi’s Barcelona eight times — although they never faced each other because either him or Messi were always absent.

“What Messi does is something I only see on the PlayStation when I play with my son,” Gattuso said. “He’s a champion, who has statistics that will never be repeated and who is also an example for kids for the way he’s conducted his career.

“He’s been doing unimaginable things for years, the only difference is that today he has a beard, but he remains the best in the world.”

Lorenzo Insigne of Napoli, centre, scores the first goal of the game against Lazio, during their Italian Cup Serie A quarterfinal soccer match at San Paolo stadium in Napoli, Italy, Tuesday Jan. 21, 2020. (LaPresse via AP)

Lorenzo Insigne of Napoli, centre, scores the first goal of the game against Lazio, during their Italian Cup Serie A quarterfinal soccer match at San Paolo stadium in Napoli, Italy, Tuesday Jan. 21, 2020. (LaPresse via AP)

More AP soccer: https://apnews.com/Soccer and https://twitter.com/AP_Sports

Napoli coach Gennaro Gattuso gesture during the Italian Serie A soccer match between Napoli and Lecce at the San Paolo stadium in Naples, Italy, Sunday, Feb. 9, 2020. (CafaroLaPresse via AP)

Napoli coach Gennaro Gattuso gesture during the Italian Serie A soccer match between Napoli and Lecce at the San Paolo stadium in Naples, Italy, Sunday, Feb. 9, 2020. (CafaroLaPresse via AP)

Napoli coach Gennaro Gattuso shouts instructions during the Italian Serie A match between Lazio and Napoli at the Olympic stadium in Rome, Saturday, Jan. 11, 2020. (Alfredo FalconeLaPresse via AP)

Napoli coach Gennaro Gattuso shouts instructions during the Italian Serie A match between Lazio and Napoli at the Olympic stadium in Rome, Saturday, Jan. 11, 2020. (Alfredo FalconeLaPresse via AP)

Barcelona's head coach Quique Setien sits on the bench during La Liga soccer match between Betis and Barcelona at the Benito Villamarin stadium in Seville, Spain, Sunday, Feb. 9, 2020. (AP PhotoMiguel Morenatti)

Barcelona's head coach Quique Setien sits on the bench during La Liga soccer match between Betis and Barcelona at the Benito Villamarin stadium in Seville, Spain, Sunday, Feb. 9, 2020. (AP PhotoMiguel Morenatti)

Barcelona's head coach Quique Setien, right, applauds as Getafe's head coach Jose Bordalas turns away during a Spanish La Liga soccer match between Barcelona and Getafe at the Camp Nou stadium in Barcelona, Spain, Saturday Feb. 15, 2020. (AP PhotoG.Garin)

Barcelona's head coach Quique Setien, right, applauds as Getafe's head coach Jose Bordalas turns away during a Spanish La Liga soccer match between Barcelona and Getafe at the Camp Nou stadium in Barcelona, Spain, Saturday Feb. 15, 2020. (AP PhotoG.Garin)