New York Yankees first baseman Anthony Rizzo is being shut down for the season because of post-concussion syndrome.
Rizzo hasn't played since Aug. 1. New York believes he was injured during a collision at first base with Fernando Tatis Jr. of the San Diego Padres on May 28.
Yankees manager Aaron Boone said Rizzo underwent a checkup in late August and has displayed cognitive improvement. Rizzo is expected to fully recover in time for spring training, according to Boone.
"I would say everything is going well," Boone said before Tuesday's home game against the Detroit Tigers.