Dyson, 28, has had an awful start to the 2017 season, blowing three saves with an 0-3 record and a 27.00 ERA in 4 1/3 innings. It’s not clear when Dyson suffered his hand injury. It could just be a cover for the Rangers to give Dyson a mental and physical break without having him take up a valuable roster spot.
Kela, 24, did not make the Rangers’ Opening Day roster primarily due to a clubhouse incident. The right-hander underwent surgery last April to remove a bone spur in his right elbow. He finished the year with an ugly 6.09 ERA but did put up a 45/17 K/BB ratio in 34 innings.