The big Six Nations game of the weekend takes place at the Aviva Stadium this afternoon.
Ireland take on Wales, as both look to put their title ambitions on the line.
Defending champions Wales beat Italy last weekend, while Ireland comfortably overcame Scotland and Ireland now sit top of the Six Nations table on points difference.
Ireland head coach Joe Schmidt says discipline will play a big part in today's game, which kicks off at 2:30.
After that, Scotland take on England in their Calcutta Cup clash at Murrayfield.
Also tonight, Munster are back in action in the Pro-12.
Munster's lead at the top of the table has been cut to just 2 points after Ulster's win over the Ospreys last night.
