Jax (elbow) struck out two in a rehab start for Triple-A Durham on Sunday, allowing three runs on three hits and two walks in three innings.
Jax built himself up to 42 pitches Sunday, moving one step closer to rejoining Tampa Bay's rotation. The right-hander is recovering from right elbow discomfort, and it's possible his next appearance will come in the major leagues. It remains to be seen if the Rays will shift Ian Seymour back to the bullpen upon Jax's return or if they'll instead turn to a six-man rotation.