49ers' Aldon Smith denies report he was drinking with Ray McDonald (w/video)

SANTA CLARA - San Francisco outside linebacker Aldon Smith acknowledged Tuesday that he visited Ray McDonald’s home for a short time the day the ex-49ers defensive lineman is accused of sexually assaulting a woman.

Smith said he didn’t drink any alcohol and that he is regularly checked for sobriety. He served a nine-game suspension this year for violations of the NFL’s substance-abuse and personal-conduct policies.

“As far as it’s concerned, I was over at Ray’s house for close to an hour,” Smith said at his locker. “I didn’t drink one thing. And as far as it goes, relating to that, I have nothing else to say. It’s not my issue or my problem.”

Court documents unsealed Monday said the encounter occurred Dec. 14, a few hours after the 49ers returned from a 17-7 loss to the Seahawks in Seattle.

The woman stayed with McDonald at his home the next day and drank vodka with McDonald and Smith, according to the papers. That’s when McDonald conceded that a sexual encounter occurred, according to the court documents.

Smith said he did visit McDonald’s San Jose home on Dec. 15.

Smith took a five-game absence last year to undergo treatment following his September 2013 DUI arrest. The 25-year-old Smith was also arrested April 13 at Los Angeles International Airport. Police said Smith was randomly selected for a secondary screening and became uncooperative with the process, telling a TSA agent that he had a bomb. No charges were filed.

Smith said that after stopping at McDonald’s he spent the remainder of the evening with his young son.

“As far as that’s concerned, I said what I had to say about it,” Smith said, noting he is tested for alcohol “enough for me to pass the test.”