ABC has formally apologized for a slightly raunchy open to Monday Night Football featuring Philadelphia's Terrell Owens and actress Nicolette Sheridan of ABC's prime-time sudser Desperate Housewives.The open featured Sheridan, clad only in a towel, trying to entice Owens. Once Sheridan dropped her towel, Owens opted out of the game, saying the team would have to win without him.In the taped segment, Sheridan drops a towel and is shown from a rear angle unclothed down to the lower part of her back. After Owens says, "Aw, hell, the team's going to have to win without me," Sheridan jumps into his...