Police intervened after MIllwall fans fought each other in the stands at Wembley as the London club lost 2-0 to Wigan Athletic in the FA Cup semi-final.
Former Millwall player Paul Ifill said Lions fans who fought each other in the stands during today's FA Cup defeat to Wigan "tainted the day".
Gutted boys had a go 2nd half Wigan 2 gd great cup run now bk 2 the league must stay up! Shame that a few so called fans tainted the day!
Wigan Athletic have reached the FA Cup final for the first time in their history, beating Millwall in a match that was marred by scenes of violence involving fans of the London club.
Shaun Maloney and Callum McManaman scored in a 2-0 win for the Latics, whose victory means the club qualify for Europe.
Millwall fans could be seen fighting each other in the stands throughout the second half of the Wembley semi-final.
The winning crew finished in 17 minutes and 27 seconds to cut Cambridge's overall lead to 81-77.
Oxford have emerged as clear favourites to win the Boat Race after more than 70% of bets were placed on the Dark Blues, according to bookmaker William Hill.
Spokesman Joe Crilly said: "Oxford are certainly the best backed crew as of yet, although that was very much the case at this stage of proceedings last year.
"Last year, however, we took nearly £40,000 on the day of the race and Cambridge became best backed by the time the race started. Maybe history will repeat itself this time around."
Royal Marines will patrol the River Thames today to make sure there is no disruption to the Oxford and Cambridge Boat Race.
Organisers are trying to stop any repeat of last year when the annual race was stopped by Trenton Oldfield, who swam into the path of the crews.
The race's Executive Director, David Searle, said: "We are taking additional measures this year and have reviewed all of our actions last year in detail.
"The Boat Race course is four and a quarter miles long so we have eight and a half miles of riverbank to manage and monitor.
"What I would say to anybody thinking of disrupting the race is that it's unbelievably dangerous. You risk injuring yourself, the crews and the other people following the race.
"Nobody wants that to happen. This is just a sporting event."
Manchester City player Carlos Tevez has been arrested in Cheshire on suspicion of driving while disqualified, police sources have told the Press Association. He has been released on police bail.
Tevez was banned from driving for six months in January and ordered to pay fines and costs totalling £1,540.
The retired Bolton midfielder Fabrice Muamba will present the Capital One Cup to the winning captain in Sunday's Wembley final between Swansea and Bradford.
The former England Under-21 international was playing for Bolton in an FA Cup quarter-final against Tottenham last March when he suffered a cardiac arrest and collapsed.