Astros pitching prospect sorry for tweet

HOUSTON (AP) -- Astros pitcher Jarred Cosart has apologized after he reportedly used a gay slur to describe pop star Justin Bieber when he tweeted a message to a former teammate.

Cosart deleted the offensive tweet from his account and apologized for ''a very poor choice of words.'' He also says in a tweet that the earlier post does not reflect who he is as a person.

The Astros also released a statement Monday night calling Cosart's tweet ''unacceptable'' for any member of the organization. The Astros say they talked to Cosart about the post and he is ''extremely remorseful.''

The 23-year-old Cosart went 1-1 with a 1.95 ERA in 10 starts last season. He is expected to contend for a spot in Houston's rotation this year.