Chris Bosh’s blood-clot difficulties return

Chris Bosh is back on blood thinners to treat a clot that formed in his leg, the second straight year the Miami Heat forward has dealt with such a situation over the All-Star break. The Hornets acquired swingman Courtney Lee from the Grizzlies in a three-team trade that will help bolster the team's perimeter shooting and defense after losing Michael Kidd-Gilchrist to a shoulder injury. The Grizzlies get forward P.J. Hairston from Charlotte and big man Chris Andersen and two second-round draft picks from the Heat, who will get guard Brian Roberts from Charlotte, a person with knowledge of the trade said. ... The NBA has informed teams that jumping on a player's back to commit an intentional foul could be ruled as a flagrant violation.