Challenge of the Week #18 is a Subway Series match-up. The Mets closer goes up against the Yankees slugging 3rd baseman. Climb the leaderboard and get as many hits as you can to win your choice of signed jersey, from one of six MLB stars: Cabrera, Kershaw, Sabathis, Soriano, Tulowitzki, Posey.

Week #18 begins on Monday, July 4th at 5:30am Pacific Time and ends Monday July 11th at 4:30am Pacific Time.

To play, simply select the “Challenge of the Week” option in the main menu.

This week continues the July monthly prize period – $2000, cold hard cash. Every four weeks, a monthly prize will be awarded to the player with the most Challenge of the Week points. Weekly scores will also be added from May 30th until September 18th 4:30am Pacific Time for a chance to win Grand Prize #2, a trip for two to a 2011 World Series Game!

Each user can only win each type of prize ONCE, so compLeaderboards for Weekly, Monthly and Grand Prizing, along with the official rules can be found at the NEW home of MLB The Show at TheShowNation.com.

Stay tuned to the comments section of the weekly Challenge of the Week blog, as we will be giving away some free voucher codes for Challenge of the Week!