WIMBLEDON, England -- The WTA crunched some numbers and an interesting fact appeared. If No. 2 Kim Clijsters advances farther here at The Championships than Serena Williams, Clijsters will be the new No. 1 player. Apparently even Justine Henin-Hardenne has a chance but that requires all sorts of scenarios that it's just too early to contemplate.
Clijsters plays her opening match on Centre Court on Monday following her boyfriend, Lleyton Hewit who kicks things off at 8 a.m.
Potential show stoppers
Lleyton Hewitt doesn't have an easy first round against Ivo Karlovic who is -- no kidding -- 6-foot-10. Top seeded Hewitt is only 5-9.
Venus Williams plays the second match on Court 2. That's kind of out there for a two-time champion. Ouch.
Venus doesn't have an easy draw with Russians Nadia Petrova and Vera Zvonareva looming in the third and fourth rounds but the first round looks pretty easy. Venus plays S Hrozenska of Slovakia who in her four years on the WTA Tour has only won two matches. This is only Hrozenska's second Grand Slam tournament.
Andy Roddick plays David Sanguinetti of Italy at 1 p.m. ET. Roddick's coming off a big grass-court win at Queen's Club under the guidance of new coach Brad Gilber. But Roddick's under a lot of pressure to make the breakthrough to the final of a major.
Off the show courtsRafael Nadal-Parera, 16, has recovered from an injury (suffered while jumping over a net) that kept him out of the French Open. He plays Mario Ancic on Court 6 at noon.
Former semifinalist Todd Martin, 32, takes the court in what might be his last appearance at Wimbledon.
Carly Gullickson, the 16-year-old daughter of former MLB pitcher Bill Gullickson takes on a tough first Grand Slam match against Iroda Tulyaganova.
Cynthia Faulkner is the tennis editor for ESPN.com.