Jul 24, 2010 7:49 PM EST

The Athletics signed catcher Kurt Suzuki to a four-year contract extension on Friday worth a guaranteed $16.25 million.

The contract kicks in this season, superseding the one-year $420,000 deal Suzuki had in place.

There's a vesting option for 2014 based on Suzuki's starting a minimum number of games in 2013.

Via Oakland Tribune