Sorry to re-visit it, but one day we might look back and laugh.

Arsenal had equalised against Greek champions Olympiacos when, shortly before half-time, a corner swung in towards Colombian goalkeeper David Ospina. He, erm, failed to catch the ball and patted it down over his own line to give Olympiacos the lead.

As we all know, Arsenal failed with another comeback attempt in the second half by shooting ourselves in the foot but it was the officials’ reaction to Ospina’s drop that have caused a rule change from UEFA.

The fifth official, eager to make the referee away of Ospina’s error, started waving his arms around to signal a goal. Standing on the edge of the pitch, these officials are only supposed to communicate via microphone but Dutchman Danny Makkelie got ahead of himself and UEFA have reacted to change the previous rules.

Famous referee Pierluigi Collina is now UEFA’s head of referees and decided that clear signalling to the centre circle from the official leaves no doubt over who made the call to give the goal, which is a good thing.

I’m sure Arsenal fans will take little comfort from the rule change, and will probably still want to see Petr Čech in goal when the Gunners face Bayern Munich in October and November, with the club desperate to rescue this season’s European campaign.

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