This was supposed to be Zack Greinke's third start as a Dodger, and Chris Capuano was supposed to take his normal spot as Los Angeles' reliable left-hander out of the bullpen.
But, of course, nothing is certain in baseball, where the best laid plans change on a moment's notice and for the strangest of reasons.
Greinke broke his left collarbone in San Diego last Thursday when he collided with Padres outfielder Carlos Quentin, who had incited a bench-clearing brawl by charging the mound after being hit by a pitch.
Now, Capuano is slated to take Greinke's place against those very same Padres on Tuesday in the second of three games between the two clubs at Dodger Stadium. Quentin, who has since been suspended for eight games, will not play, and there was no retaliation of any sort in Monday's series opener.
It's the first start of the year for Capuano, who has spent most of his nine-year career as a starter. The Dodgers' offseason signings of Greinke and Hyun-Jin Ryu prompted Capuano's move to the 'pen, where he has thrown just 2 2/3 innings all season.
"I threw ... 90 pitches the last week of Spring Training, so going deep into the game isn't a concern for me," Capuano said. "I don't know about them [manager Don Mattingly and pitching coach Rick Honeycutt]. Knock on wood, I feel really good. I need to pound the zone to be effective."
In 2012, Capuano went 12-12 with a 3.72 ERA in 33 games (all starts). His presence on the roster is a testament to the Dodgers' depth within the rotation -- which led to questions throughout the spring as to who would earn the final spots.
Meanwhile, Jason Marquis takes the ball for the slumping Padres, who, at 3-10, sport baseball's second-worst record. Their last five losses, however, have come by a total of nine runs, and they knocked off the Dodgers on Monday, 6-3.
"We want to make sure we play good baseball," manager Bud Black said. "We're a couple pitches away, maybe a couple at-bats away, from having a few more wins. Hopefully that will come. We have to make some pitches on the mound, get a timely hit to get us over the top. That's what we've got to focus on. We can't worry about where we've been. We've got to worry about where we're going."
Marquis will be looking to keep his pitch count in check after it took him 102 pitches to get through five innings in his last time out. He allowed just two runs in that start -- a two-run homer off the bat of red-hot Adrian Gonzalez.
The former Padres first baseman, Gonzalez is batting .396 this season and has hit safely in nine of his last 10 contests -- six of them multi-hit games.
Padres: Headley's return expected shortly
• Injured third baseman Chase Headley, last season's National League RBI champ, could return any day from his fractured left thumb.
"He's close," Black said Monday. "We don't know when. He's got to feel comfortable where he is."
Headley sustained the injury on March 17 and began his rehab assignment last week. He played games for Class A Lake Elsinore on Friday, Sunday and Monday.
Dodgers: Lilly will make Minors start
• Left-hander Ted Lilly will make another Minor League rehab start Tuesday at Class A Rancho Cucamonga. Following their decision to go with Capuano against the Padres, the Dodgers asked Lilly to remain in the Minors, but he initially declined.
Lilly is coming off shoulder surgery and hasn't pitched since last May. He made two Minor League starts and allowed 10 earned runs in 12 innings.
Assuming all goes well for Lilly, chances are he'll be activated later in the week -- likely as a reliever.
• Padres first baseman Yonder Alonso has five hits in 11 career at-bats against Capuano.
• The Padres' combination of Everth Cabrera and Chris Denorfia has combined to hit .300 this season. In 2012, the club's leadoff men batted .264.
• Marquis has had success against Dodgers right fielder Andre Ethier, who is hitting just .111 in 27 at-bats against him.
• Los Angeles honored Jackie Robinson at Dodger Stadium on Monday with a pregame video tribute and a ceremony featuring Robinson's widow, Rachel, daughter, Sharon, and son, David.