London Irish have invited Heineken Cup organisers to investigate two alleged incidents of racial abuse during the recent back-to-back Heineken cup games against Ulster in the last fortnight.

London Irish player Delon Armitage claims to have been abused by an opposition player during the first game at the Madejski stadium and again, by the same player, after the second match at Ravenhill in Belfast

The accused player has not yet been identified, however, since the incident, London Irish have received a formal apology from an Ulster player for what the club describe as "foul and abusive language".

In a statement released today, the club said: "London Irish has forwarded its version of events to ERC, the tournament organisers, and awaits their response."

There is a suggestion that the first incident may have been caught on camera by Sky Sports.