After declaring him not an injury risk and talking down concern when a heavy short-term workload left him unavailable for a night early last month, it was more than a tad disconcerting to read that David Robertson was not available last night due to arm fatigue. That makes his 9-pitch, 1-and-done appearance on Tuesday night more understandable and should be looked at as somewhat of a concern based on Joe saying that D-Rob came to him to tell him he wasn't feeling it.
D-Rob was lights out in July, allowing 0 runs in 13 appearances and striking out 18 batters to just 1 walk. In fact, he hasn't given up a run since June 16th. He also had his heaviest workload of the season in July, 13.0 IP in all. That's a pretty decent toll considering a few off-days and the ASB are included. Robertson had pitched in 3 of the last 4 nights before last night, but only 3 times in the preceding 2 weeks because of the break. It's not like Joe has been riding him into the ground lately, so why the arm fatigue now?
Chances are it was just a one-time thing and D-Rob will be good to go. He'll have a second straight day off tomorrow and it wouldn't shock me to see Joe hold him out a third day tomorrow if the lead or deficit is big enough. As long as we see Robertson back out on the mound fanning guys this weekend, I think he's fine.