Michael Beasley has a slightly cracked sternum after a collision with a teammate earlier this week, yet still could be with the Miami Heat when the team opens summer league play Monday. Daequan Cook won't be so lucky.

The Heat said Cook has a separated left, non-shooting, shoulder, meaning he won't be available for the five-games-in-five-days summer league schedule starting Monday in Orlando. Cook -- who sustained the injury Thursday night -- will be sidelined out 2-4 weeks, a significant blow because the Heat hoped the second-year guard could use a strong summer showing as a springboard into the 2008-09 season.

Beasley, however, may get the chance to make his much-anticipated pro debut. He was elbowed by a teammate in a defensive drill Wednesday, about 45 minutes into Miami's first practice of the summer session. The No. 2 pick in the recent NBA draft originally was diagnosed with a chest bruise, and tests further revealed the small sternum fracture -- something that typically doesn't show up on an X-ray and heals over time.

The Heat said Beasley continued participating in non-contact drills with the team yesterday and was cleared for some contact today. His status for the start of summer league play -- against the Chicago Bulls and No. 1 overall pick Derrick Rose -- remains day-to-day.

More basketball

Point guard Chris Duhon has agreed to a deal with the New York Knicks.

Tennis

Top-seeded Luis-Manuel Flores of Mexico advanced to the semifinals of the Men's Futures of Pittsburgh at Mt. Lebanon Tennis Center with a 6-2, 6-4 victory against Tigran Martirosyan of Armenia. Georgia graduate Travis Helgeson, a finalist a year ago, also moved on with a 6-1, 7-6 triumph against Bryan Koniecko.

Pro football

Former Kentucky receiver Keenan Burton said he reached a three-year deal with the St. Louis Rams worth more than $1 million.

College football

Wide receiver Christian Kuntz became the 15th verbal commitment for Penn State's Class of 2009. Kuntz, 6 feet 4, 195 pounds, is from Trinity High School in Camp Hill, Pa. He chose the Nittany Lions over Connecticut and Akron.

Power boats

Shaun Torrente of Miami won the pole then outlasted Tim Seebold of Osage Beach, Mo., in a two-lap shootout to claim the F1-ChampBoat Series race on the Allegheny River.

Boxing

Unbeaten Joe Calzaghe (45-0) has relinquished his WBC super-middleweight title to set up a potential fight in September against Roy Jones Jr. for the light-heavyweight belt. If he had kept the super-middleweight title, Calzaghe would have been obligated to defend it against British fighter Carl Froch. Froch will now face Jermain Taylor for the super-middleweight title.

Wild Things

Jacob Dempsey had three RBIs and scored twice as host Washington held off the Florence Freedom, 12-8, in Frontier League baseball action. Mike Schellinger (6-2) struck out 11 in seven innings for the win.