Cincinnati Reds pitcher Johnny Cueto left Game 1 of the National League Division Series against the San Francisco Giants with back spasms after throwing just eight pitches.
The team says Cueto is day-to-day, according to CBSSports.com.
Right-handed reliever Sam LeCure came on in relief of Cueto. Cueto left the game in the first inning coming up lame after his second pitch to Giants second baseman Marco Scutaro. There was no score in the game and one out in the inning.
If Cueto is replaced on the roster for any reason, he is ineligible to pitch in the National League Championship Series if the Reds advance. This season, Cueto started 33 games for the NL Central champions, going 19-9 with a 2.78 ERA in 217 innings.