But if it seen as a lower end then 2 weeks is all he will get. Maybe look up the law he was sent off for.
http://www.irblaws.com/downloads/EN/law_10_en.pdf
10.4 DANGEROUS PLAY AND MISCONDUCT
(a) Punching or striking. A player must not strike an opponent with the fist or arm, including
the elbow, shoulder, head or knee(s).
Sanction: Penalty kick
The sanction is the same as for sections 10.4 (a)-(m) except that the penalty kick is
awarded at the place where play would restart. If that place is on the touchline or within 15
metres of it, the mark for the penalty kick is on the 15-metre line, in line with that place.
If play would restart at a 5-metre scrum, the mark for the penalty kick is at that place of the
scrum.
If play would restart with a drop-out, the non-offending team may choose to take the
penalty kick anywhere on the 22-metre line.
If a penalty kick is awarded but the offending team is guilty of further misconduct before the
kick is taken, the referee cautions or orders off the guilty player and advances the mark for
the penalty kick 10 metres. This covers both the original offence and the misconduct.
If a penalty kick is awarded to a team but a player of that team is guilty of further
misconduct before the kick is taken, the referee will caution or send-off the guilty player,
declare the kick disallowed, and award a penalty kick to the opposing team.
If an offence is committed outside the playing area while the ball is still in play, and if that
offence is not covered by any other part of this Law, the penalty kick is awarded on the 15-
metre line, in line with where the offence happened.
10.5 SANCTIONS
(a) Any player who infringes any part of the Foul Play Law must be admonished, or cautioned
and temporarily suspended for a period of ten minutes' playing time, or sent-off.
(b) A player who has been cautioned and temporarily suspended who then commits a second
cautionable offence within the Foul Play Law must be sent-off.
10.6 YELLOW AND RED CARDS
(a) When a player has been cautioned and temporarily suspended in an International match the
referee will show that player a yellow card.
(b) When a player has been sent off in an International match, the referee will show that player
a red card.
(c) For other matches the Match Organiser or Union having jurisdiction over the match may
decide upon the use of yellow and red cards.
10.7 PLAYER SENT OFF
A player who is sent-off takes no further part in the match.