SAN DIEGO -- Luis Martinez made his Major League debut Friday night, and less than 24 hours later, he found out he was optioned back to Triple-A Tucson.

Martinez pinch-hit for Kyle Phillips in the seventh inning and finished the game at catcher, going 0-for-2 at the plate.

"It was a dream come true," he said. "Finally what I've been working for my whole life, finally happened last night. I was fortunate enough to make good contact both times, but unfortunately didn't get lucky enough to drop anywhere. But I felt great at the plate, behind the plate as well."

Martinez lined the first Major League pitch he faced -- a 94-mph fastball -- back to pitcher Jeremy Affeldt, who made a quick grab to snag it.

"I was looking for one spot, somewhere out over the plate, outer half, and it was there," Martinez said. "I was a little out in front of it, hit it off the end of the bat."

Martinez was recalled from Triple-A Tucson on July 8 and spent the next week soaking in the Major League atmosphere.

He said that waiting time helped him with his nerves when his debut came around.

"Surprisingly enough, I thought I was going to be very nervous, but I was fine," he said. "I was really excited to be there. A little nervous, excited, but very, very calm for the first time out there."

Martinez was hitting .313 with 18 RBIs and 17 runs in 38 games with the Tucson Padres, and the time he spent in San Diego will likely keep his motor running in order to make it back one day.

"Everything has been what they've talked about in the Minor Leagues and more," he said. "I definitely would love to be here for as long as I can, because this is the life and there's nothing else I'd rather do than be up here for a very long time."

Padres play waiting game with Headley's calf

SAN DIEGO -- Third baseman Chase Headley, who took himself out of Thursday and Friday's games with separate injuries, underwent an MRI Saturday on his strained right calf and received encouraging results.

Headley had injured his right calf before Friday's 6-1 loss to the Giants while running pregame sprints. He wasn't able to finish or basically play the game, leaving in the bottom of the first inning.

"It's as good as can be expected," he said. "It's a small strain. Hopefully it will keep getting better and we won't have to DL it, but we'll see."

The news came as a relief to Headley, who withdrew from Friday's game trying to avoid hurting his calf beyond what had been done.

"There was no question in my mind that if I would have taken a hard step or busted out of the box in an at-bat that it was going to be a lot worse than it was," Headley said after Friday's game. "I didn't want to make it any worse than it already was, as frustrating as it was to have to do that."

The Padres will miss Headley's bat. He is the only player on the team hitting .300 or better, but Padres manager Bud Black said the third baseman will likely rest through Monday. There's an "outside chance" Headley could be available Sunday, but considering how Alberto Gonzalez played in his stead, there isn't much need to rush him back.

"He's got some ribbies," Black said of Gonzalez. "He's got some big ribbies for us. He can put the bat on the ball in a crucial situation. His forte is the defense and anything to do with his bat is a plus."

With Headley likely out for a few days, the Padres will make a determination by early next week.

"We'll see how he is Tuesday," Black said. "Tuesday, Wednesday we'll decide if this is DL or whether we think he'll be playable ... which will be the best result."

The Padres do have infielder Logan Forsythe ready as well, after the team recalled him from Triple-A Tucson on Satuday in case Headley's situation does become a longer-term one.

But based on the MRI results from Saturday, the Padres are certainly hopeful it won't become one.

"The results were pretty good," Black said. "Hey, from what Hutch [Padres athletic trainer Todd Hutcheson] told me, and the doctors, good results. What does that mean? I don't know. ... I didn't get it, but it's good. It's better than the alternative of what I heard. He's still day to day."

Pair of Padres Draft picks visit PETCO Park

SAN DIEGO -- It's sort of like a recruiting trip when Draft selections visit PETCO Park to work out and meet the organization and players.

And Saturday the Padres welcomed two compensation-round picks, pitcher Michael Kelly and catcher Brett Austin, to the park for just that.

"Obviously two kids we like a lot, just look at where we drafted them," said Padres vice president and assistant general manager Jason McLeod. "Both of them have opportunities to good four-year schools in Florida and North Carolina State, and this is kind of our get-to-know-them-better process ... and hopefully get them excited about San Diego and signing."

Kelly and Austin were the Padres' third and fourth selections from the 2011 Draft.

Padres manager Bud Black had a chance to watch both of them.

"[Kelly] threw well. I liked him," Black said. "Good arm action. Ball came out clean. Good delivery. A lot to like, I can see why our scouts liked him. ... And the catcher, good hands. Just playing catch and watching him throw back to the pitcher, nice arm stroke."

But Austin's strength is more in his hitting. That's what the Padres liked most about him.

"He's a high school kid, but we really, really like his bat," McLeod said.

McLeod said Kelly has good downward motion, can hit the mid-90s with his fastball and is more than likely a ground-ball pitcher.

Both players are expected to be some of the toughest Draft selections for the team to sign. Kelly and Austin are two of the three players the Padres selected with their first 10 selections that haven't signed yet. The other is defensive-heavy catcher Austin Hedges.