The clash occurred outside Sports Authority Field at Mile
High in Denver, Colorado, where the Denver Broncos were playing
the San Diego Chargers.
Three of the men who were stabbed were in custody, conscious and
talking, and a fourth possible stabbing victim fled the scene,
said city police department spokesman Steve Warneke.
The incident was witnessed by fans leaving the stadium but
further details were unclear, he said.
The Chargers beat the Broncos 27-20, bolstering the California
franchise's playoff chances and delivering the Denver football
team its first home loss of the season.
The confrontation followed a series of recent violent incidents
at U.S. football stadiums.
Earlier this month, a man died after a struggle outside
Arrowhead Stadium, the home of the Kansas City Chiefs, during a
game against Denver.
(Reporting by Eric M. Johnson, Keith Coffman;
editing by John Stonestreet)
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