Randy Johnson took a big step in his return from back surgery, and Mark DeRosa was happy to be on the field with a healthy heart.

Pitching in a game for the first time since June, Johnson lasted 11â3 innings Monday during Arizona’s 10-9 victory over the NL champion Colorado Rockies at Tucson, Ariz.

“I’ve got a long ways to go, but I’m just happy to be able to get out there and pitch pain-free,” Johnson said. “Comparing today to the last time I pitched at Chase (Field), it’s night and day.

Arizona manager Bob Melvin wouldn’t speculate on whether Johnson might be ready to open the season with the big league team as the Diamondbacks defend their NL West title.

“I’m not going to rule anything out,” Melvin said.

DeRosa played for the first time since undergoing a heart procedure on Feb. 28 and went 0-for-3 in the Chicago Cubs’ 6-4 loss to the Milwaukee Brewers at Phoenix.

“Just to get out there and break a sweat and be with the guys was fun,” the second baseman said. “I hadn’t seen live pitching since (the postseason).”

Red Sox 1, Mets 1, 10 inn.

At Port St. Lucie, Fla., Johan Santana pitched four scoreless innings.

Angels 5, Athletics 4

At Tempe, Ariz., John Lackey made his first appearance of spring training, allowing one run and two hits in 12â3 innings for Los Angeles.

Indians 12, Rays 10

At St. Petersburg, Fla., Tampa Bay lefty Scott Kazmir, sidelined the past two weeks with an elbow strain, threw a bullpen session.

Tigers 4, Nationals 3

At Viera, Fla., Justin Verlander threw three scoreless innings.

Astros 4, Blue Jays 3

At Kissimmee, Fla., Lance Berkman homered.

Dodgers 7, Orioles 4

At Fort Lauderdale, Fla., Chan Ho Park tossed three perfect innings.

Twins 4, Marlins 2

At Jupiter, Fla., Kevin Slowey allowed six hits in three shutout innings.

Braves 3, Cardinals 1

At Kissimmee, Fla., Jair Jurrjens ran his scoreless streak to eight innings.

Pirates 8, Phillies 5

At Bradenton, Fla., Ian Snell pitched four efficient innings.

White Sox 9, Mariners 8

At Tucson, Ariz., Jim Thome and Paul Konerko hit consecutive home runs off.

Yankees 4, Reds 0

At Tampa, Fla., Alex Rodriguez returned to third base after being limited to DH duties the past few days by a sore right shoulder.

Rangers 5, Padres 2

Nate Gold homered for Texas.