The club successfully fought a high-profile campaign to keep the 20-year-old in the country last season after he was threatened with deportation to Sierra Leone. But he will now not be involved against Crystal Palace on Saturday.

A club statement said: "The club can confirm Al Bangura returned home early from the recent tour of Austria for disciplinary reasons. These have since been dealt with internally.

"Al Bangura remains an important part of the Watford squad ahead of what is an important season for the midfielder."