On Saturday, cameras caught the Boston Red Sox viewing images of San Diego Padres closer Robert Suarez's different set-ups for throwing a fastball versus a changeup.

But, Suarez's outing against Boston might've been affected by him tipping his pitches. He blew the save, allowing the Red Sox to tie the game in the ninth inning, forcing the game into extra innings, where the Padres came out on top on a walk-off from Ramon Laureano.

Dylan Cease was impressive for six innings before San Diego’s All-Star-laden bullpen got into and out of trouble in the seventh and the Padres beat the Boston Red Sox 6-2 to take two of three.

Starting pitcher Nick Pivetta tosses the ball after Wilyer Abreu of the Boston Red Sox hit a home run during the fourth inning at Petco Park on Friday. (Meg McLaughlin / The San Diego Union-Tribune)qwd

BOTTOM LINE: The San Diego Padres host the Boston Red Sox on Friday to begin a three-game series. San Diego has a 36-19 record in home games and a 64-51 record overall. The Padres have the sixth-ranked team on-base percentage in the NL at .320.

The San Diego Padres are aware of All-Star closer Robert Suarez tipping his pitches, and they're working on adjustments to his mechanics.

The Boston Red Sox were spotted looking at something curious in the dugout Saturday night. The San Diego Padres apparently know exactly what it was.