Querrey will play the winner of the quarter-final between Germany's Rainer Schuettler and Israel's 14th seed Dudi Sela.

BBC: Rafael Nadal suffers shock Queen's Club loss to Lopez

And Bohdan Ulihrach of the Czech Republic came through a tough test against Germany's Rainer Schuettler to win 6-2 6-7 7-5.

BBC: Johansson hits form in Halle

German Rainer Schuettler , the sixth seed, was also defeated, losing 6-2 7-5 to little-known Frenchman Jean-Rene Lisnard .

BBC: Koubek books final spot