Cubs' Rizzo exits game because of tightness in lower back

Cubs slugger Anthony Rizzo exited Chicago's game against the Washington Nationals on Tuesday night because of tightness in his lower back.

Rizzo grounded out to end a two-run third against Patrick Corbin and did some stretches at first base prior to the fourth inning. Manager David Ross and a trainer went out to check on him.

Rizzo remained in the game. But he couldn't handle Kyle Schwarber's grounder leading off the inning, resulting in a error.

He was replaced as a precaution in the fifth, with Kris Bryant moving from right field to first base. Jason Heyward went in to play right and took Rizzo's spot in the order.

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