Haag started for Bath in the victorious 1998 Heineken Cup Final as they defeated Brive.
[3] He made his 300th appearance for Bath Rugby in the 35–19 Heineken Cup victory over Castres Olympique on 13 January 2001, celebrating the occasion with a try, his 27th for the club.
[4] In April 2001, with Haag having lost his place to Mark Gabey and Bath also having the resources of Andy Lloyd, Steve Borthwick and new signing Danny Grewcock to call on, the club announced that his services would not be needed for the 2001–2002 season.
[5] In total he played 295 times for Bath Rugby with 9 appearances as a substitute before becoming Youth Academy Coach with the club.
[10] In June 2009 he returned to Bath Rugby when he succeeded Mark Bakewell as forwards coach to the senior team.