the nba playoffs are in full swing. one of the teams in the hunt for the championship includes a player who overcame life-threatening surgery to get back on the court. here's cnn's chief medical correspondent in this week's "human factor." >> seeing memphis grizzlies star jeff green in action it's clear he's a player with heart. but in 2011 his game was interrupted. >> i was in complete shock. >> a routine team physical revealed an aortic anyurism near the left valve in his heart. jeff didn't touch a basketball for nearly six months. he lost muscle and the mechanics of his game. >> it was a slow progression. my body was different. the timing was off. i was fatigued. i wasn't concerned about getting hit. the biggest thing for me was being in the shape and being