Rooney's outstanding strike was a first of 2014 for the fit-again striker and ensures he heads into Tuesday's Champions League tie at Olympiacos in confident mood.
"Sometimes they can be difficult coming across your body," he explained. "Thankfully, I got a nice connection on it. It went in so obviously I'm delighted.
"Tuesday is a massive game for us. We want to be going into the quarter-finals of the Champions League. It'll be tough but we'll get the Palace match out of our system, prepare well and we'll be ready."
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