Mcguire pitched 5.1 innings in Triple-A Memphis' Season Opener against Colorado Springs on Thursday, giving up one earned run while striking out four.
The former No. 11 overall pick in the 2010 draft pitched well last year for Double-A Tulsa and Triple-A Oklahoma City, posting a 3.69 ERA and 1.20 WHIP over 136.2 innings. However, his production has been highly variable as in 2012 he posted a 5.88 ERA over 144 innings at Double-A New Hampshire and a 5.10 ERA for three minor league teams over 150 innings in 2014. It will take many more performances like Thursday's for a potential call up to the majors to be in the question this year.