Both matches went to the final set. I always enjoy Berdych vs Wawrinka - their USO encounter was one of the best of this year.
Group B looks really tough for everyone. 3 real contenders are in the same group.
In the meantime, Andy's ranking is taking a beating.He's now ranked 4 and if Del Potro goes further then he'll slip to rank 5 I think come new year. Oh well better be healthy than feel sorry.