Diekman (abdomen) has tossed 4.1 perfect innings thus far during his rehab assignment with Double-A Frisco and Triple-A Round Rock. He's struck out six batters during those contests.
It's been a long road to recovery from Diekman following three surgeries to address ulcerative colitis, but his dominance during the rehab assignment suggests he could be on the cusp of rejoining the big club. Once he's activated from the 60-day disabled list, Diekman could settle into an integral setup role for the Rangers, as the team is lacking in reliable or healthy options out of the bullpen beyond closer Alex Claudio.