Top seeded Roddick beat Austria's Jurgen Melzer while Grosjean scored over Nicolas Lapentti in the semi-finals of the U.S. Men's clay court championships.
Top seed Andy Roddick blasted his way into the last four with a 6-4, 6-1 victory over Peru's Luis Horna.
The 13th seeded duo beat Feliciano Lopez and Fernando Verdasco of Spain to enter the last four at the US Open.
Croatia's Ivan Ljubicic upset third seed Tim Henman rain disrupted match to reach the semi-finals of the Dubai Open
The 47-year-old legend believes she could succeed in mediating between the conflicting interests in the sport.\n\n
The defending champion is on collision course with Lleyton Hewitt, the man whose title he took.
The Russian is one of those fancied to wrest the title from world number one Roger Federer this time.
The arguments will continue to rage over whether Pete Sampras can call himself the greatest ever, but in terms of numbers he has no equal.
Mahendra Singh Dhoni is no longer an automatic choice in one-day internationals and the former India captain needs to keep performing.
The Australian second seed eased past Frenchman Olivier Mutis 7-6, 6-1 to reach round two of the $380,000 Long Island Cup.
American Robby Ginepri moved easily into the Japan Open quarter-finals with a 6-4, 6-4 victory over Luxemburg's Gilles Muller on Thursday.
The Wimbledon champion split with his coach Peter Lundgren after the most successful year of his career.
Roddick ended the season ranked No. 1 but Wimbledon champion Federer is being hailed as the best player in men's tennis.
The 26-year-old has already done enough to replace Tommy Haas as the\n\nGerman No. 1 when the latest world rankings are released on Monday.
Defending champion Thomas Johansson of Sweden is injured and won't be defending his title at the Australian Open.
Roddick edged past Andre Agassi while Grosjean easily beat Tim Henman in the semis of the Stella Artois Championship.
The sixth seed was beaten in the first round of the Australian Open by Robin Soderling.
The former world number ones, who between them captured 28 Grand Slam titles, will be inducted on July 11.\n\n
But defending champion, Andre Agassi at 33 years is still the man to beat.
