NFL to suspend Antonio Smith

The NFL is expected to suspend Houston Texans defensive end Antonio Smith for up to two preseason games for using a helmet as a weapon against Miami Dolphins guard Richie Incognito, a source told ESPN NFL Insider Adam Schefter.

The suspension is expected to be announced Tuesday, according to the source.

The incident occurred during the second quarter of Saturday's preseason game when Incognito was attempting to block Smith. Incognito appeared to grab the face mask of Smith, who retaliated by ripping off Incognito's helmet and swinging it at the veteran lineman.

Smith declined to talk about the scuffle.

"Next question," he told reporters after the game. "I kind of took a blow to the head. I can't remember."

It was not the first time Smith and Incognito have been involved in a physical altercation during a game. Smith was fined $21,000 last season for kicking Incognito, a penalty that was reduced to $11,000 after Smith appealed, saying he was retaliating to Incognito's intentionally twisting his right ankle.

ESPN.com's Tania Ganguli contributed to this report.