Seventeen held at Birmingham v West Ham cup clash
Seventeen people were arrested at the Carling Cup semi-final match between Birmingham City and West Ham.
A West Midlands Police spokesman said the arrests at St Andrew's, where the game took place, were for a variety of offences.
Police spent the rest of the evening monitoring the city centre, transport centres and bars.
Eyewitnesses said some fans were seen ahead of the game trying to confront each other in a car park.
Dog handlers, the police helicopter and specialist evidence gathering teams were at the match, which Birmingham won 4-3 after extra time.
CCTV footage will be reviewed to look for those who tried to cause trouble.
Supt Steve Graham, of West Midlands Police, said the majority of spectators enjoyed an exciting match and "friendly rivalry".
"Unfortunately, a very small minority used the game as an excuse to cause trouble," he said.
In addition to a criminal conviction, those found guilty of football-related violence face a lifetime ban from matches, he added.