9:57 AM PT -- Check out the happy couple on their wedding day thanks to this pic from @dmitry_shumanev ... they look great!!
DeMarcus Cousins didn't let a torn ACL hold him back on the biggest day of his life ... so says Matt Barnes, who tells TMZ Sports the NBA superstar was dancing and in great spirits at his wedding over the weekend!!!
The 29-year-old Lakers center married his longtime girlfriend, Morgan Lang, in Atlanta on Saturday -- just 2 weeks after seriously injuring his left knee in a Vegas training sesh.