Rooney paid tribute to van Persie's bravery in deciding to take the penalty, with the weight of expectation bearing down after so long without a goal.
"I'm sure he would have thought about it (the drought) before he took the penalty, but he showed a lot of courage to step up and put it away. Credit to him for that.
"Every player in the world has had a few games on the run without scoring. Robin's kept his head down, kept working and thankfully today he's got his goal and hopefully that'll kick him on because he'll be a massive player in the next few games for us."