Celtic lost their Scottish Cup semi-final to Inverness Caledonian Thistle . The Glasgow club wrote to the SFA to complain about a penalty decision . In an email sent on Friday, they said that it was not clear whether the referee had made his own judgement or if he followed instructions from the linesman. Celtic striker Leigh Griffiths complained they were 'robbed ' at Hampden . Adrian Durham : Man Utd need Gareth Bale to give them needed dynamism .
Celtic lost their Scottish Cup semi-final to Inverness Caledonian Thistle . The Glasgow club wrote to the SFA to complain about a penalty decision . They were angered by the referee 's failure to award a penalty for handball . Celtic striker Leigh Griffiths complained they were 'robbed ' at Hampden . Adrian Durham : Man Utd need Gareth Bale to give them needed dynamism .