SAN DIEGO -- Dan Haren finally feels comfortable in Dodger blue.
Haren didn't go with the Dodgers to Australia for their season-opening, two-game series against Arizona, so he didn't get his first taste of real action with his new team until he threw six strong innings in a 5-1 victory against the San Diego Padres on Wednesday night.
"I feel like part of the team now," Haren said. "I haven't done anything up to now. I'm just happy that I was able to come through for the guys.
"I really wasn't with the team that much," said Haren, who signed as a free agent in late November. "Teams often bond on the road. They're in the clubhouse a lot, on the plane or bus, whatever. So I really didn't have that. I'm just glad I was able to come through, and I'm looking forward to getting back home."
While the Dodgers were in Arizona, Haren, their No. 4 starter, pitched in minor league games.
"Man, I got my butt kicked in those camp games," he said. "The adrenaline level, there's nobody watching, it's dead silence. It's hard to simulate major league innings."
Haren retired the first nine batters before Everth Cabrera singled to center leading off the fourth and eventually scored on Yonder Alonso's one-out single to right. The run was unearned because Seth Smith, batting after Cabrera, reached on catcher's interference by A.J. Ellis.
Haren (1-0) allowed four hits, struck out seven and walked none.
The Dodgers took two of three from the Padres and now play their home opener Friday afternoon against San Francisco.
The Dodgers jumped on Tyson Ross (0-1) for three runs in the first inning.
Carl Crawford doubled to left-center and advanced on Yasiel Puig's sacrifice bunt. Puig was safe when Ross' throw pulled first baseman Alonso off the bag. Manager Bud Black went out to challenge the play, but umpires determined he didn't do so in a timely manner. It took Black several seconds to come out of the dugout after the play.
"I challenged, and the first-base umpire said, 'OK,' then they convened and they said they were not going to allow it," Black said.
Black said he was told that Ross had already gotten back on the rubber and Hanley Ramirez was in the batter's box.
"Like I told those guys, I thought the message was to get the play right," Black said. "I don't have a timer with me. But I thought I went out there in due time to issue the challenge."
Crew chief Fieldin Culbreth didn't agree.
"There is some judgment involved and there are some things that make it specific," Culbreth said. "We had the play. Some significant time had gone by. They had been on the phone. I want them to challenge it if that's what they need to do. That's what we are here for. That's how this thing is going to work. My thing is, if you come out, maybe we can put the brakes on it then. But if we can't get you out there, then it comes down to the timely manner.
"To me, at some point, we had gotten out of the range of what was timely," Culbreth said.
According to the rules of the new instant replay system, a manager must immediately inform the umpire whether he wishes to use his challenge. "If, upon such prompting, the manager does not immediately respond that he is using his manager challenge, then the umpire shall revoke the manager's right to challenge any call relating to that play, and the club shall retain its manager challenge," the rule states.
"This is a new system. There are going to be situations that arise with every game," Black said. "There are going to be bugs to work out, and this is one of them."
Replays shown on the local TV broadcast appeared inconclusive.
Ramirez scored again in the fifth when he walked with one out and eventually came in on Andre Ethier's two-out single to right.
Ross allowed four runs, three earned, in five innings while striking out seven and walking four.
"His stuff was good, he just really couldn't command his fastball early in the game," Black said. "The first two innings, 50-plus pitches. He had to work awfully hard to get those six outs. He had a real tough time getting the ball in the strike zone early.
"Haren, on the other hand, was getting the ball in the strike zone early. He was pretty efficient the first three innings."
Los Angeles added another run in the eighth against Donn Roach, who was making his big league debut. Roach came on with two outs and allowed singles to Juan Uribe and Ellis, and an RBI double to Dee Gordon.
The Dodgers put reliever Brian Wilson on the 15-day disabled list, retroactive to Monday, with inflammation in the ulnar nerve in his right elbow, and recalled right-hander Jose Dominguez from Triple-A Albuquerque. Manager Don Mattingly said Wilson threw Wednesday and will continue building from there. ... Mattingly said OF Matt Kemp (right ankle surgery) is on track to be activated from the disabled list Friday. ... RHP Josh Beckett (bruised right thumb) is scheduled to pitch for Class-A Rancho Cucamonga on Friday night as he works his way back from the DL. ... The Padres claimed LHP Bobby LaFromboise off waivers from the Seattle Mariners and optioned him to Triple-A El Paso. To make room on the 40-man roster, the club transferred right-hander Joe Wieland from the 15-day disabled list to the 60-day DL. Wieland, still rehabbing from reconstructive elbow surgery, recently had arthroscopic surgery to relieve irritation in the back of his elbow, pushing back his return. Manager Bud Black thinks Wieland can return before the All-Star break. ... Both teams are off Thursday. The Dodgers play their home opener Friday against San Francisco. RHP Ryan Vogelsong is scheduled to make his season debut for the Giants while LHP Hyun-Jin Ryu (1-0) goes for the Dodgers. The Padres are at Miami. The scheduled starters are LHP Eric Stults (season debut) for San Diego and RHP Tom Koehler (season debut) for Miami.
The Associated Press contributed to this report.