The New York Yankees agreed to a four-year, $52 million contract extension with outfielder Brett Gardner on Sunday.

According to CBSSports.com, Gardner's new deal begins in 2015. It buys out the first four years of his free agent eligibility. It also includes a fifth-year club option for $12.5 million, according to the YES Network.

"It's a demonstration from our end," Yankees general manager Brian Cashman said. "We don't typically do this, but it shows the level of confidence, belief and trust in the type of person and player he is, and we're excited to know he's going to be part of this thing going forward."

Gardner, 30, had a batting line of .273/.344/.416 with 33 doubles, an American League-best 10 triples, eight home runs, 52 RBI, 81 runs and 24 stolen bases in 2013. He has played center field, but with the signing off Jacoby Ellsbury, he will move back to left field.

"I don't want to be anywhere else," Gardner said. "There's no better place to play baseball than in New York. I've never been anywhere else. I got drafted here almost nine years ago, and I love it here. I love everybody in the organization, the coaching staff and all my teammates, and this is where I want to be."

The Yankees' starting outfield is locked up through 2016. In addition to Gardner and Ellsbury, the club also signed right-fielder Carlos Beltran earlier in the offseason.