Nick Lachey has denied reports that he choked a rival fan at an American football game. The 98 Degrees star was ejected from Qualcomm Stadium on Sunday after an argument during a game between the San Diego Chargers and the Cincinnati Bengals, whom Lachey supports. The other man involved in the altercation has now alleged that Lachey choked him and pushed him to the ground during the row, and described his wife as a "f**king bitch", TMZ reports. Lachey has not denied being involved in an argument during the game, tweeting at the time: "Just got kicked out of the chargers stadium and couldn't be prouder! Go Cincy Bengals! #whodey." He added: "Bengals win again. I'd talk trash to everyone in Sd, but what's the point? you already had me kicked out of the stadium and you still lost. "Majority of charger fans were awesome yesterday, thanks (more)...