Wales coach Warren Gatland says there is "extra spice" whenever Wales take on Ireland.
Gatland coached Ireland between 1998 and 2001 and has led Wales to two Grand Slams and a World Cup semi-final since being appointed Wales head coach in 2007.
Grand Slam-chasing Ireland visit the Millennium Stadium on Saturday, with Wales knowing if they win it will put them back in the Six Nations championship race.
The 2013 British and Irish Lions coach told BBC Wales Sport's rugby correspondent Gareth Charles he is "indebted" for the opportunity Ireland gave him.
Gatland also explains how highly he rates Irish half-backs Conor Murray and Johnny Sexton.