( CNN ) -- Roger Federer will resume his rivalry with Australia 's Lleyton Hewitt when the two tennis superstars play in the final of the Gerry Weber Open in Halle on Sunday . Federer , who has an incredible 76-1 record on grass since 2003 , reached his third ATP Tour final of the year with a 7-6 6-3 win over German Philipp Petzschner . Earlier on Saturday , Hewitt beat another home hope as he battled past Benjamin Becker 6-7 7-6 6-2 . Nadal and Murray crash out at Queen 's Club . Hewitt , who won Wimbledon in 2002 and held the world number one spot , will be meeting Federer for the 25th time , but he has lost the last 16 matches . `` He 's obviously the best grass-court player around , '' Hewitt told the official ATP Tour Web site . `` It 's a good test for me to go out there . I 'm going to have to obviously play extremely well and execute what I want to do out there and try and put him under some kind of pressure . '' Federer will be seeking his sixth title in Halle , his traditional warm-up event ahead of a tilt at his seventh Wimbledon crown . Meanwhile , Mardy Fish will contest an all-American final against Sam Querrey in the other big grass warm-up tournament at Queen 's Club in London . Fish , who beat defending champion Andy Murray in the third round , saw off Spaniard Feliciano Lopez 6-3 6-4 . Lopez could not reproduce the form which saw him beat compatriot Rafael Nadal , the world number one and French Open champion in the quarters . Querrey edged Germany 's Rainer Schuettler 6-7 7-5 6-3 in the first semifinal .
Roger Federer to face Bob Hewitt in final of the tournament in Hamburg . Federer will be seeking his sixth title in the German grass court season . Sam Querrey and David Fish reach all - American final at Queen 's Club .