HOUSTON — The Astros drafted their third college arm in their first five picks of the MLB Draft Tuesday by selecting right-handed pitcher Tyler Ivey of Grayson County (Texas) College in the third round (No. 91 overall). He has committed to Oklahoma State.

Ivey, who began his career at Texas A&M, pitched in 12 games last season for Grayson and was 9-0 with a 2.08 ERA. He struck out 122 batters in 78 innings. In his freshman season at Texas A&M, he appeared in 11 games and had 48 strikeouts and a 3.56 ERA.

The Astros took University of North Carolina right-hander J.B. Bukauskas with the No. 15 overall pick in the first round and Texas A&M right-hander Corbin Martin — a former teammate of Ivey — with the No. 56 overall pick in the second round.

The Draft concludes on Wednesday, with exclusive coverage of Rounds 11-40 beginning on MLB.com at 11 a.m. CT.