If you refer to full substitutions then 5 maximum.
If you talk about temporary "blood replacements" - unlimited
Where a key position (front row player) is strategically substituted and that substitute thereafter becomes injured, the original play can be brought back on - This is for safety reasons. If there is no specialist front row player to do this then another player may be used in the front row but scrums become uncontested.
Where a key position (front row player) is "yellow carded" (sin binned) a substitute player may be brought on to take the position for the purpose of scrummaging. However, another play has to leave the field of play so that the headcount remains one short. Again this is done for safety reasons as props and hookers are specially trained in the positions they play.
Union. 23 are selected for the squad. 5 play. If the closers (reserves) 3 must be replacements for the front row.
how was the rugby ball originally made
no
For international matches a Union may nominate up to seven replacements/substitutes. For other matches, the Union with jurisdiction over the match decides how many replacements/substitutes may be nominated to a maximum of seven (subject to Law 3.14 when it may be eight). A team can substitute up to two front row players (subject to Law 3.14 when it may be three) and up to five other players. Substitutions may only be made when the ball is dead and with the permission of the referee.
The standard rugby shirt is made from a combination of polyester and cotton. However, as the game has evolved the league has made rugby shirts made out of mostly polyester as it's safer for the players.
Rugby was initially created by William Web Ellis a student of Rugby School Warwickshire England in 1823.
it was made years ago
1908
Alluminium
GethinEvans :)
By rugby and soccer
No.Yes - there were no replacements in the 1960's and before. If a player went off with a broken arm etc. he could come back on - but no other player could come on as a replacment; so we sometimes had 15 men play 13 or 14.Times were tougher then!