– Somebody forgot to tell the Tigers they are no longer the team to beat in the AL Central.

Overlooked in preseason predictions despite winning the division the past four years, the Tigers stayed unbeaten with an 8-4 victory over Cleveland on Friday, spoiling the Indians' home opener in their remodeled ballpark.

Alfredo Simon took a shutout into the sixth in his Detroit debut, Nick Castellanos hit a two-run homer and the Tigers got contributions from nearly everyone in their lineup to move to 4-0.

While the Indians, Royals and White Sox garnered more preseason hype, the Tigers haven't lost a step.

"We don't care about other teams," said Victor Martinez, who had three hits and an RBI. "We have too much to worry about with our team than be worried about others. We have to take care of our own business."

Simon (1-0) gave up three runs and seven hits in 5⅓ innings. The All-Star righthander came over in an offseason trade from Cincinnati and got his first taste of what it's like to pitch for one of baseball's best lineups.

Castellanos homered in the fifth inning off Zach McAllister (0-1), tagged for a career-high 13 hits — 11 of them singles, as the Tigers bled him slowly as opposed to doing their usual bludgeon job.

"They have a great lineup from top to bottom," McAllister said. "They've got guys who can hit. They've got guys who can run."

Carlos Santana had two RBI for Cleveland, which put the tying run on deck in the ninth before Joakim Soria, filling in at closer while Joe Nathan is on the disabled list, struck out Michael Bourn with two on for his first save.

Miguel Cabrera also had three hits and an RBI for the Tigers, who swept the Twins in their first three games and have outscored their opponents 30-5 to open the season.