The Portland Thorns and the Chicago Red Stars played to a scoreless draw Wednesday in the group stage of the National Women’s Soccer League’s Challenge Cup tournament.

Portland dominated possession and outshot Chicago’s young lineup but couldn’t manage to score in the match played without fans in Herriman, Utah.

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Portland Thorns FC goalkeeper Bella Bixby (31) makes a save as Portland Thorns FC defender Emily Menges, left, defends against Chicago Red Stars forward Savannah McCaskill, center, during the second half of an NWSL Challenge Cup soccer match at Zions Bank Stadium on Wednesday, July 1, 2020, in Herriman, Utah. (AP PhotoRick Bowmer)

The Portland Thorns and the Chicago Red Stars played to a scoreless draw Wednesday in the group stage of the National Women’s Soccer League’s Challenge Cup tournament.

Chicago Red Stars defender Julia Bingham (23) defends against Portland Thorns FC forward Simone Charley, center, during the first half of an NWSL Challenge Cup soccer match at Zions Bank Stadium on Wednesday, July 1, 2020, in Herriman, Utah. (AP PhotoRick Bowmer)

Chicago’s Savannah McCaskill had a free kick in the 85th minute that went wide.

Chicago Red Stars defender Julia Bingham, right, defends against Portland Thorns FC forward Simone Charley (38) during the first half of an NWSL Challenge Cup soccer match at Zions Bank Stadium on Wednesday, July 1, 2020, in Herriman, Utah. (AP PhotoRick Bowmer)

The Thorns were without Becky Sauerbrunn, who had played in the opener, because of a hip injury. Portland is also without goalkeeper Adrianna Franch for the duration of the tournament because of a knee injury. Tobin Heath opted not to play in the Challenge Cup.

Chicago Red Stars forward Savannah McCaskill (9) defends against Portland Thorns FC midfielder Emily Ogle (37) during the second half of an NWSL Challenge Cup soccer match at Zions Bank Stadium on Wednesday, July 1, 2020, in Herriman, Utah. (AP PhotoRick Bowmer)

All eight teams participating in the tournament play four group stage matches to determine seeding for the quarterfinals. The league’s ninth team, the Orlando Pride, withdrew because of positive COVID-19 tests.

Portland Thorns FC forward Christine Sinclair (12) battles with Chicago Red Stars midfielder Danielle Colaprico (24) during the first half of an NWSL Challenge Cup soccer match at Zions Bank Stadium on Wednesday, July 1, 2020, in Herriman, Utah. (AP PhotoRick Bowmer)

Portland Thorns FC forward Christine Sinclair (12) battles with Chicago Red Stars midfielder Danielle Colaprico (24) during the first half of an NWSL Challenge Cup soccer match at Zions Bank Stadium on Wednesday, July 1, 2020, in Herriman, Utah. (AP PhotoRick Bowmer)

Rookie Morgan Weaver had a good chance for the Thorns in the 14th minute but Chicago goalkeeper Emily Boyd got a hand on it and pushed it over the net. Raquel Rodriguez also had a shot from distance go just wide after coming in off the bench in the second half.

Portland Thorns FC goalkeeper Bella Bixby (31) makes a save as Portland Thorns FC defender Emily Menges, left, defends against Chicago Red Stars forward Savannah McCaskill, center, during the second half of an NWSL Challenge Cup soccer match at Zions Bank Stadium on Wednesday, July 1, 2020, in Herriman, Utah. (AP PhotoRick Bowmer)

Portland Thorns FC goalkeeper Bella Bixby (31) makes a save as Portland Thorns FC defender Emily Menges, left, defends against Chicago Red Stars forward Savannah McCaskill, center, during the second half of an NWSL Challenge Cup soccer match at Zions Bank Stadium on Wednesday, July 1, 2020, in Herriman, Utah. (AP PhotoRick Bowmer)

Chicago’s Savannah McCaskill had a free kick in the 85th minute that went wide.

The game was the second of the tournament for both teams. The Red Stars swapped out their lineup from the opener, with key players including Julie Ertz, Alyssa Naeher, Kealia Watt and Yuki Nagasato all on the bench. Red Stars coach Rory Dames has said he wants to give young players experience during the tournament.

Boyd replaced Naeher in goal to start the game and Cassie Miller was subbed in for the second half.

Chicago Red Stars defender Julia Bingham (23) defends against Portland Thorns FC forward Simone Charley, center, during the first half of an NWSL Challenge Cup soccer match at Zions Bank Stadium on Wednesday, July 1, 2020, in Herriman, Utah. (AP PhotoRick Bowmer)

Chicago Red Stars defender Julia Bingham (23) defends against Portland Thorns FC forward Simone Charley, center, during the first half of an NWSL Challenge Cup soccer match at Zions Bank Stadium on Wednesday, July 1, 2020, in Herriman, Utah. (AP PhotoRick Bowmer)

The Thorns were without Becky Sauerbrunn, who had played in the opener, because of a hip injury. Portland is also without goalkeeper Adrianna Franch for the duration of the tournament because of a knee injury. Tobin Heath opted not to play in the Challenge Cup.

Thorns goalkeeper Bella Bixby has started in goal for the Thorns in both games.

The Thorns lost the tournament opener Saturday to the defending champion North Carolina Courage, 2-1. The Red Stars fell to the Washington Spirit 2-1 in their opener.

Chicago Red Stars defender Julia Bingham, right, defends against Portland Thorns FC forward Simone Charley (38) during the first half of an NWSL Challenge Cup soccer match at Zions Bank Stadium on Wednesday, July 1, 2020, in Herriman, Utah. (AP PhotoRick Bowmer)

Chicago Red Stars defender Julia Bingham, right, defends against Portland Thorns FC forward Simone Charley (38) during the first half of an NWSL Challenge Cup soccer match at Zions Bank Stadium on Wednesday, July 1, 2020, in Herriman, Utah. (AP PhotoRick Bowmer)

All eight teams participating in the tournament play four group stage matches to determine seeding for the quarterfinals. The league’s ninth team, the Orlando Pride, withdrew because of positive COVID-19 tests.

The NWSL is the first professional team sports league in the United States to return to play amid the coronavirus pandemic. The teams were in training camp when the league shut down on March 12.

Chicago Red Stars forward Savannah McCaskill (9) defends against Portland Thorns FC midfielder Emily Ogle (37) during the second half of an NWSL Challenge Cup soccer match at Zions Bank Stadium on Wednesday, July 1, 2020, in Herriman, Utah. (AP PhotoRick Bowmer)

Chicago Red Stars forward Savannah McCaskill (9) defends against Portland Thorns FC midfielder Emily Ogle (37) during the second half of an NWSL Challenge Cup soccer match at Zions Bank Stadium on Wednesday, July 1, 2020, in Herriman, Utah. (AP PhotoRick Bowmer)

Portland Thorns FC forward Christine Sinclair (12) battles with Chicago Red Stars midfielder Danielle Colaprico (24) during the first half of an NWSL Challenge Cup soccer match at Zions Bank Stadium on Wednesday, July 1, 2020, in Herriman, Utah. (AP PhotoRick Bowmer)

Portland Thorns FC forward Christine Sinclair (12) battles with Chicago Red Stars midfielder Danielle Colaprico (24) during the first half of an NWSL Challenge Cup soccer match at Zions Bank Stadium on Wednesday, July 1, 2020, in Herriman, Utah. (AP PhotoRick Bowmer)