SAN DIEGO -- Padres manager Bud Black defended Jake Peavy on Sunday, saying a dark substance on his right hand after a game against the Dodgers on Saturday was just a mix of dirt and rosin.

The sports Web site www.thebiglead.com posted images Sunday it said were sent by a reader after Peavy tossed a two-hitter in a 4-1 win over Los Angeles. The images, purportedly still frame shots from a TV broadcast of the game, show a dark substance on Peavy's right thumb, index and middle fingers.

"When you play baseball, your hands get dirty," Black said Sunday. "He had dirty hands. Trying to keep his palms and fingers dry, you apply rosin and dirt. Rosin is a sticky substance, and as often as he goes to the rosin bag, as often as he goes to the dirt to sop up moisture, your hands get dirty.

"I don't think there is anything to it. Modern cameras can pick up a dirty hand."

Peavy (2-0) has allowed just one run in 16 innings over two starts this year. The right-hander won the NL Cy Young Award last season.

"There's nothing on my hands that's not supposed to be," Peavy told the San Diego Union-Tribune for a blog entry on its Web site. "I thought it was funny that it was such a big deal. I've got no problems with anytime anybody needs to check me."