The R's fell behind to the Black Cats when Steven Fletcher scored in the 20th minute but goals from Loic Remy, Andros Townsend and Jermaine Jenas gave the West Londoners a vital victory and Redknapp feels that starting Park in central midfield was a risky choice which paid dividends.
"I took a gamble by playing Ji-sung Park as one of two in midfield - he usually plays wide or in a three. The two of them [Park and Stephane Mbia] were fantastic," he said.
"We played with two out-and-out wingers and two strikers and I liked the look of us. We looked like an attacking force and that's the best I've seen us going forward."