San Diego manager Bud Black said Thursday the reigning Cy Young Award winner, who is on the 15-day disabled list with a right elbow strain, is "excited about how his elbow feels," after a second throwing session Wednesday.
Peavy threw his second flat-ground session before Wednesday's game at PETCO Park, a day after throwing 40 pitches.
"Yesterday, he lengthened it out farther and with the duration and intensity," Black said. "He'll lengthen it again Friday. ... If everything goes well Friday and he bounces back Saturday, he'll throw off the mound Sunday."
Ideally, Black would like to see Peavy throw a couple of bullpen sessions, "turning the ball loose," possibly followed by a simulated game.
Black said Peavy, who went on the disabled list on May 20, retroactive to May 15, might not have to go on a Minor League rehabilitation assignment before returning to the team's starting rotation.
Pitcher Chris Young, who was hit in the face by a line drive off the bat of Albert Pujols on May 21, visited an ear, nose and throat doctor on Thursday and was to have another MRI on his fractured nose, facial fracture and the small fracture in his skull.
"He looks good," Black said of Young. "He looks significantly better facially because the swelling has gone down, the puffiness around the eyes, nose. He said he's had ice on his face forever."
Finally, outfielder Justin Huber, who left Wednesday's game in the second inning when his back spasms wouldn't subside, was doing better Thursday. Edgar Gonzalez got the start in left field on Thursday against a left-handed pitcher, John Lannan.
"He's fine. He could be available, but it looked as though the spasm last night has quieted down to the point where we could use him today. We'll see," Black said.
Corey Brock is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.