M's off to a very rough start @GregJohnsMLB Chris Heston replacing Felix to start third inning. Heston making his MLB debut. Felix gave up 6 hits, 4 runs in 2 innings. Haniger coming out of game after singling in third inning. Looks like he was wincing coming out of box. Not good. Haniger has a strained oblique muscle, according to Mariners.