By Divij Kulkarni View the original article to see embedded media. Gregg Popovich has been the talk of the NBA since becoming the winningest coach in the history of the league this week. The San Antonio Spurs beating the Utah Jazz allowed Coach Pop to overtake Don Nelson and further his legacy as one of the NBA’s biggest legends. And congratulations have been pouring in for Coach Pop, from players and coaches around the league to the fans. Doc Rivers has added his name to the list of people giving Pop his flowers, and he did it hilariously too. Rivers has been a Head Coach in the league since …