SANTA CLARA, Calif. (AP) Quarterback Colin Kaepernick on Wednesday shot down rumors that he and the recently released Aldon Smith had a confrontation at Levi's Stadium last week.

Kaepernick, speaking at his weekly news conference, called the rumor ''embarrassing'' and pointed out disparities.

He said Smith was a good friend and that the defensive lineman attended a golf tournament and a football camp he hosted.

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Smith was released by the 49ers on Friday, the day after he was arrested on suspicion of drunken driving.

The 49ers travel to Houston for their first exhibition game Saturday.