Guga is training to come back sometime this summer, the US Open being his first big tournament to check his fitness. He made the second round last year, took the first set off of Robredo but the hip started to bother him. He seemed excited after the match about the direction things were going in but so far he hasn't been able to get fully fit. I hope he does, at least for a year, so he can make one last run at the French.
Verkerk keeps signing up to play and pulls out at the last minute. Shoulder problems I think. Apparently not ready.
I don't know what's up with Schalken. Mono took him out for more than a year and he's never come back. He played a couple of Challengers this year but has been quiet since.