I do it for the women usually, but why not the men too. Here are the first round matches I'm most looking forward or have the best chance of an upset.
Karlovic(26) v. Hewitt-Hewitt won a clay court title, I know its the US claycourts where he didn't beat any player in the top 70, but hey its got to count for something. Karlovic's results on clay haven't been that awful. Possible third round opponent for Nadal, I like Karlovic in four sets.
Ferrer(14) v. Gil-Ferrer has been in rather poor form of late, and faces a tough customer on clay in Gil in the first round. Match will be a long grinding affair, I'm sure of it. Could be a long one here, I like Ferrer in four sets.
Stepanek(18) v. Gaudio-Ranked outside the top 350 now, the one-time French Open champ is back. Coming off a challenger win a few weeks ago Gaudio is playing some better tennis. Stepanek retired down a set and a 5-2 to Querrey last week in Madrid. I like the big upset here, Gaudio in five.
Andreev(25) v. Fognini-Two players who relish the clay. Fognini had to qualify to get here, and has played a lot on clay, oddly enough losing three weeks in a row to Gilles Simon. Rather disappointing last few months or so for Andreev who has done nothing. Fognini in four.
Ljubicic v. Ferrero-An oldtimers battle here. Ljubicic has been playing some of his best tennis in the past few weeks. Ferrero is trying to find his best form. Both guys received wildcards in Madrid last week interestingly enough, who deserved it more...I say Ferrero in four.
Berdych(19) v. Bolelli-Berdych has been OK this clay court season, winning in Munich (although not beating anyone ranked inside 40). I've always been impressed with Bolelli, and clay should suit him best. Another disappointment for Berdych? I say yes Bolelli in three.
Other seeds who need to watch out in their first round encounters: Scheuttler(27), Tursunov(21)-if he plays, Simon(7), Almagro(31).