18 May, 15:44
It's down to the wire now for the five contenders who have been shortlisted for the ultimate individual accolade in northern hemisphere rugby, ERC European Player of the Year 2013.
The new system, to take effect immediately, involves substitution cards which the nominated team official must fill in and sign before any substitution takes place, including the reason for the substitution - tactical, injury, blood or sin bin - and the jersey numbers of the players involved.
The substitution card must be handed to the fourth official before the substitution can take place. The fourth official will then record the details on a similar form detailing all substitutions made during the match.