After giving up five runs in the top of the tenth inning, the Diamondbacks score six times in the bottom of the frame in an amazing 7-6 come-from-behind victory over the Dodgers. Arizona infielder Ryan Roberts delivers the decisive blow in the Chase Field contest, a walk-off grand slam with two outs.

Meanwhile, in the American League, the Red Sox have to thank third-string catcher Ryan Lavarnway, making his first career start behind the plate because of injuries to Jarrod Saltalamacchia and Jason Varitek, for their 8 – 7 win over Baltimore­. Lavarnway hits his first two major league homers then makes a great defensive play on a squibbler by Matt Wieters as the Orioles are rallying in the 9th. The Rays stay tied with Boston by beating the Yankees, 5 – 3, thanks to home runs by Matt Joyce and Ben Zobrist which account for all of their scoring. The Rays also pull a triple play in the 6th inning in the game.

Both wild card races are tied at the end of today’s games, with one day left in the season. Atlanta loses, 7 – 1, to Philadelphia after a poor performance by starting pitcher Derek Lowe, while St. Louis overcomes an early 5 – 0 deficit to beat Houston, 13 – 6. Ryan Theriot delivers a tie-breaking two-run triple as a pinch-hitter in the 7th to open the floodgates for the Cardinals, who use seven relievers in the game after Jake Westbrook leaves early; Eduardo Sanchez is the winner in his first appearance since June 12th. For its part, Atlanta had led the National League wild card race since June 20th.