MIAMI — Tyler Chatwood is expected to land on the disabled list because of his left hamstring injury.

The right-handed pitcher threw a side session Sunday and ran lightly. He said it went well, but the Rockies planned to discuss his status and whether or not Jordan Lyles should replace him. A decision is expected Monday.

Typically, the Rockies proceed with caution, and in this case there would be little gained in pushing Chatwood if he’s not 100 percent. The Rockies would rather have Chatwood miss a few starts than lose him for several weeks. They’re already without Jhoulys Chacin (shoulder) until the first week of May.

Chatwood injured his hamstring legging out a triple Friday night in Arizona. The timing was horrible. After an offseason removal of bone chips, Chatwood enjoyed a strong spring, showing velocity and improved command. He went 8-5 with a 3.15 ERA last season, a breakthrough performance that was limited twice by elbow soreness.

Acquired in the trade that sent Dexter Fowler to the Astros, Lyles lost out to Franklin Morales for the fifth starter job. Lyles would be coming off regular rest if he had to pitch Wednesday. The Rockies could move Chatwood back, but team officials suggested that is unlikely.

Blackmon center of attention. Rockies manager Walt Weiss wasn’t available to the media Sunday, but batting practice provided a hint of his opening-day lineup. Charlie Blackmon hit in the first group and will bat leadoff and start in center field against Marlins right-hander Jose Fernandez. Blackmon said he’s prepared for any role in 2014, having played all positions a year ago.

Footnotes. Jordan Pacheco is equipped for his role. He has a catcher’s glove, a first baseman’s mitt and another accessory if he winds up at third base or second. “I will be ready,” he said. … Justin Morneau takes over for Todd Helton at first base, ending the longest opening-day streak of any Rockies player.

Looking ahead

Rockies’ Jorge De La Rosa (16-6, 3.49 ERA in 2013) vs. Marlins’ Jose Fernandez (12-6, 2.19), 5:05 p.m. Monday; ROOT, 850 AM

Jorge De La Rosa is entering a pivotal season. He is driven to push the Rockies back to the playoffs, which he missed because of an injury in 2009 as the Phillies knocked out Colorado. The left-hander is in the final year of his contract, leaving much at stake. De La Rosa finished spring strong but did that without Wilin Rosario, the catcher whom he periodically crosses wires with during games. De La Rosa has limited Marlins slugger Giancarlo Stanton to one hit, but former Rockies infielder Jeff Baker is 5-for-12 against him. Miami’s Jose Fernandez is poised for an NL Cy Young Award run. Fernandez has a 98 mph fastball and an 88 mph slider. He beat the Rockies twice last year, holding them to a .184 batting average. Only DJ LeMahieu (2-for-5) and Michael Cuddyer (2-for-6) had any success against the 21-year-old star.

Tuesday: Rockies’ Brett Anderson (1-4, 6.04 in 2013) at Marlins’ Nathan Eovaldi (4-6, 3.39), 5:10 p.m., ROOT

Wednesday: Rockies’ Tyler Chatwood (8-5, 3.15) at Marlins’ Henderson Alvarez (2-1, 1.84), 5:10 p.m., ROOT

Thursday: Rockies’ Juan Nicasio (9-9, 5.14) at Marlins’ Jacob Turner (3-8, 3.74), 10:40 a.m., no TV

Friday: Diamondbacks’ Randall Delgado (0-0, 0.00 in 2014) at Rockies’ Franklin Morales (2-2, 4.62 in 2013), 2:10 p.m., ROOT

Troy E. Renck, The Denver Post