Yeah, Van Der Merwe can't overpower Don. He doesn't have an overpowering game, his best attributes are his serve and his BH slice, and decent consistency. He goes to the net a lot off his serve. Don should be able to beat him from the back and when he comes in, Don likes a target. Perfect match-up.
Also VDM played for 2+ hours so fatigue could be a factor.
Yeah I did notice that and Don's two matches were under 2 hrs combined (57 and 58 I believe). Hopefully he can just get the W and then we would see about his draw, a lot of tough draws for Qualys.