Two teams jockeying for positioning in the standings will be in direct opposition today as the Astros and Mariners continue their three-game series at Minute Maid Park. This American League West clash — featuring Houston’s Dallas Keuchel and Seattle’s Taijuan Walker — is just one of many intriguing matchups in store for today’s MLB.TV slate, including starts by Madison Bumgarner, David Price and Masahiro Tanaka.