It doesn't matter that his serve looked a little off or that he was slow in getting to some balls or that he got a bit tired near the end of the 104-minute match.
It doesn't matter that Oliver Rochus, a light-hitting journeyman, dispatched the 2009 U.S. Open champion in straight sets.
All that matters is this quote from Del Potro after the match: "The most important thing for today is my wrist -- and it's perfect."
Some observers labeled Del Potro's 7-6, 6-4 loss a disappointment, but this was far from it. Not playing would be a disappointment. Seeing Del Potro on the court and showing only ill-effects from a long layoff, not a hurt wrist, is encouraging.
He wasn't going to come back and win Thailand, after all. A win would have been nice, sure, but serving 16 aces, launching some groundstrokes and showing flashes of the brilliance that helped him ascend into the Federer-Nadal conversation before he went out with injury in January is a nice consolation.
Every comeback needs a starting point and Del Potro had his Tuesday. He's back. His wrist is healthy. It's all good.