Watford defender Jorell Johnson was injured as loan club Hemel Hempstead conceded two late goals to exit the FA Cup at the hands of League Two Bury on Saturday.
The centre-back was substituted at half-time of the Tudors' 3-1 FA Cup first round defeat against the Shakers after suffering concussion.
James Potton put the Conference South side into a shock lead after ten minutes before Andrew Tutte levelled for the Football League outfit six minutes later.
Dean Brennan's side appeared to be en-route to a replay until two minutes from time, Nathan Cameron scored for Bury. Two minutes later Daniel Nardiello grabbed the third to confirm Bury's place in round two.
Former Watford duo Jordan Parkes and Kyle Connolly also featured as the non-league side's FA Cup journey came to an end.
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