Photos: Boston Marathon Pre-Race Press Conference

Defending champions Geoffrey Mutai and Caroline Kilel. Photo: PhotoRun.net

Jason Hartmann, who finished 32nd at the U.S. Olympic Marathon Trials in January, says he's got nothing to lose in Boston on Monday. Photo: PhotoRun.net

The race's invited field spoke with the media on Friday. Photo: PhotoRun.net

The race's invited field spoke with the media on Friday. Photo: PhotoRun.net

Defending Geoffrey Mutai says he is healthy, fit and ready to race on Monday. Photo: PhotoRun.net

Former Boston Marathon champions, left to right: Joan Benoit Samuelson, Bill Rodgers and Greg Meyer. Meyer was the last American male to win the race in 1983. Photo: PhotoRun.net

Jason Hartmann (left) and Nick Arciniaga are the two top American males entered in Monday's race. Photo: PhotoRun.net

Top entrants in Sunday's BAA Invitational Mile and 5K. Top row, left to right: Ben Groleau, defending boys' high school champion, Sam Chelanga, Morgan Uceny. Bottom row, left to right: Kim Smith, Desiree Davila. Photo: PhotoRun.net

Morgan Uceny, the top-ranked 1,500m runner in the world last year, headlines the BAA Invitational Mile. Photo: PhotoRun.net

Sam Chelanga, the NCAA record-holder for 10,000m, will compete in Sunday's BAA 5K. Photo: PhotoRun.net

Desiree Davila says this weekend's BAA 5K will be her first road 5K in as long as she can remember. Photo: PhotoRun.net

Top athletes competing in the BAA 5K and invitational mile on Sunday take questions from the press. Photo: PhotoRun.net