National Football League forearms are still flying, despite commissioner Pete Rozelle's recent warning about unnecessary violence.

A spokesman for Rozelle said yesterday the commissioner is looking throughly into several incidents that occured in Monday night's game in Pittsburgh in which the Steelers defeated the Cincinnati Bengals, 20-14.

Two of the players involved in the game were cited on TV - reserve cornerback Melvin Morgan of the Bengals and veteran cornerback Mel Blount of the Steelers.

In another matter connected with the league's image, it was learned, the commissioner's office has fined 10 clubs for violations of the "uniform dress code."

The code is not only concerned with the appearance of players but with injuries that could result from failing to wear required protective equipment, such as pads.

More high-salaried players went to the sidelines last week, while others demonstrated why they earn their wages.

Quarterback Ken Anderson of the Bengals left the Monday game in the second quarter with a strained knee ligament after being cleanly tackled by defensive tackle Steve Furness of the Steelers.

Running back John Riggins of the Redskins, of course, is sidelined with torn knee ligaments suffered in Sunday's game in Dallas.

Joe Namath of the Los Angeles Rams is benched with knee and chest injuries.

Billy Kilmer of the Redskins re-entered the game in Dallas with a bruised shoulder.

Terry Bradshaw played with a fractured left wrist and nearly had the cast broken be one hit that he took. He played because reserve quarterback Mike Kruczek is sidelined with separated and dislocated shoulder.

Wide receiver John Stallworth of the Steelers was knocked out by a forearm shot by cornerback Morgan of the Bengals. Tight end Bob Trumpy of Cincinnati was flattened by cornerback Blount's forearm shot and also suffered a knee injury.

Art McNally, supervisor of NFL officials, said those episodes were being relayed to Rozelle.

The commissioner's office said that when clubs are charged with violations of the umiform dress code - for improper wearing of equipment, cutting off parts of the uniform, failing to wear knee pads, and so forth - it is left to the club to determine the amount of the fines.

The most recent club to have been penalized reportedly was the Bengals, who were said to have fined eight palyers $62.50 each.

The emotional reaction of middle linebacker Jack Lambert could have cost the Steelers a victory Monday when the clock was stopped while he was down with 24 seconds remaining. He could have been penalized for unsportsmanlike conduct.

It gave the Bengal's a chance to reorganize and reserve quarterback John Reaves zinged a pass to wide receiver Isaac Curtis in the end zone. Curtis dropped it and, anyway, a teammate, reserve guard Greg Fairchild, was charged with holding on the second-and-10 play at the Pittsburgh 22-yeard line.

On second-and-20 at the 32, Reaves completed a 25-yard pass to Curtis but time ran out.

McNally explained that anytime an official sees a player cannot leave the field on his own power, the official has a right to stop the clock.

If it occurs with more than two minutes left in a half, there is no time-out charged to the injured player's club as long as the player leaves the game for at least one play.

If there is less than two minutes left in a half, the injured player's team is automatically charged with a time-out if it has any time-outs remaining. The coach may remove the player or leave him in the game.

If the injured player's club has no time-outs left, the official can stop the clock and the player must leave the field. The time remaining is adjusted to where it was before the incident.

If the defensive team does not line up within a reasonable amount of time in such a situation, the official stops the clock.

But Lambert had nothing to gain for the Steelers by causing the clock to be stopped. In fact, he nearly lost the game for them.