Martin Castrogiovanni’s tirade at Richard Cockerill under investigation

• European Champions Cup authorities to investigate comments• Toulon prop apologises for expletive-ridden outburst• Castrogiovanni lashes out at Richard CockerillThe European Champions Cup authorities are investigating comments made by the Toulon prop Martin Castrogiovanni immediately after his side’s defeat to Leicester on Sunday following a complaint by the Tigers. The Italian, who spent seven years at Welford Road before leaving for France last year, launched an expletive-laden attack on his former director of rugby Richard Cockerill after asking to speak to reporters from the British media…