The Boise Hawks, in conjunction with the Chicago Cubs, have announced multiple roster moves prior to tonight’s 7:15 p.m. game with the Eugene Emeralds.

Closer Mike Hamann has been promoted to Class-A Kane County. The right-hander has been outstanding this season, going 3-for-3 in save opportunities, while not allowing an earned run in six appearances, spanning seven-plus innings.

Two 2013 draft picks head to Boise, as right-handed pitchers Trey Masek and Scott Frazier will make their professional debuts in Boise. Masek, a fifth-round selection out of Texas Tech, had a 5-2 record with a 1.82 ERA in 79 innings for the Red Raiders this spring, while Frazier, a sixth-round pick out of Pepperdine, went 5-5 with a 4.06 ERA in 88 innings for the Waves.

The Hawks roster is currently at 29 players, including 15 pitchers.