Except for a couple of injuries, it had been a quiet season for Chris Perez, who doubles as the Indians' lightning rod and closer. Things have changed.

Perez could face drug possession charges following a search Tuesday night at the home he and his wife are renting.

Rocky River Police Chief Kelly Stillman, at a news conference Wednesday, said police, U.S. postal inspectors and the West Shore Enforcement Bureau found what he called "a controlled delivery of drugs" Tuesday to the Perez residence on Parklane Drive in Rocky River. Stillman said he would not speculate on what was confiscated, but the department later issued a release that said the substance is suspected to be marijuana.

Stillman said they are awaiting test results from the Bureau of Criminal Investigation regarding the contents of the delivered package. Charges could follow that.

Stillman said that a search warrant was executed on the Parklane Drive residence and that evidence was obtained. He would not comment on who received the package at the home. Stillman said neither Perez nor his wife, Melanie, was arrested.

Police did acknowledge that they had been called to the house multiple times in the past for "criminal instances," but not since Perez has been living in the home. Neighbors on Parklane Drive said they had complained about drug activity over a two-year span at the home when a previous family lived there. But those problems ceased after Perez moved into the home.

Stillman said this incident is not related to any previous police matters involving the residence and said he was unaware of the owner's location and had not contacted him. Stillman also said he is unaware of how long Perez had been renting the home.

Perez, 27, is on the disabled list with a strained rotator cuff in his right shoulder and not traveling with the Indians. Just hours after the news broke, the Indians lost to the Yankees in New York, 6-4.

It's the latest in a string of controversies that have surrounded Perez, who was acquired from St. Louis on June 27, 2008 for Mark DeRosa. It turned out to be a good deal for the Tribe as Perez eventually replaced Kerry Wood as closer. He saved 23 games in 2010, 36 in 2011 and 39 last year. Perez represented the Indians at the All-Star Game the last two years.