The Australian said he saw nothing to change his opinion that the Spaniard is untouchable at Roland Garros.
The Aussie ace won the Stella Artois title for a record-equalling fourth time when he beat American James Blake.
The 36-year-old is signed as a replacement for South African Wiaan Mulder, who is expected to travel to the West Indies with the Proteas in August.
The Australian hit back from two sets down to crush former champion Gaston Gaudio at the French Open.
Hewitt cruised to victory in less than an hour and a half to leave Australia in control of the Davis Cup relegation tie at Perth's Royal Kings Park.
World number one Roger Federer produced another dominant display to crush number two Lleyton Hewitt 6-2, 6-4, 6-4.
Arnaud Clement stunned third seed Lleyton Hewitt 7-6, 6-4, to record his first win over the Australian in eight attempts
Photos from the Queen's Club tennis tournament played in London on Monday
Former Wimbledon champion Lleyton Hewitt gave Bulgarian Grigor Dimitrov a grasscourt masterclass in a second-round victory at the Aegon Championships at Queen's Club on Wednesday.
The U.S. Open runner-up has already won 24 Davis Cup singles matches and needs one more to eclipse Adrian Quist's Australian record.
Fighting tooth and nail as only he knows how old warrior Lleyton Hewitt waved an emotional goodbye to Wimbledon after losing a dramatic five-set match to Finland's Jarkko Nieminen.
18-year-old Andrew Murray battled from a set down to win 2-6, 6-1, 7-6 in the final of the SAP Open.
Lleyton Hewitt opened 2008 in convincing fashion on Tuesday as he cruised past Israeli Dudi Sela 6-2 6-2 in the first round of the Adelaide International.
The Australian hasn't yet recovered from the toe injury.
Lleyton Hewitt survived a Rainer Schuettler onslaught to advance 7-6, 2-6, 6-4 into round three of the Pacific Life Open.
Lleyton Hewitt's two-year reign as world number one was partly built on his unrivalled will to win.
Former world number one Lleyton Hewitt suffered a blow to his Australian Open preparations after he was beaten by Frenchman Jo-Wilfried Tsonga in the quarter-finals of the Adelaide International on Friday. The top seed was overpowered 6-4 6-2 by Tsonga, who hammered 14 aces on his way to victory in 80 minutes.
Lleyton Hewitt, with or without a coach, will still be one of the main title contenders at the Australian Open next week, according to world number one Roger Federer.
The world number one said he was shattered by his 6-7, 7-6, 7-6, 6-4 fourth-round defeat but could see that it might benefit him in the long run.
Lleyton Hewitt's advice to dad-to-be Roger Federer on how to cope with juggling parenthood and tennis is simple -- make sure your wife is up to scratch.
Lleyton Hewitt was involved in a record-breaking doubles match on Monday when he and partner Chris Guccione beat Agustin Calleri and Juan Monaco of Argentina 4-6 7-6 18-16.
Andy Roddick's 11th Australian Open campaign ended in disappointment on Thursday when he was forced to retire against Australian Lleyton Hewitt when trailing two sets to one.
Four-times former champion Lleyton Hewitt enjoyed a gentle workout in his first match of the grasscourt season on Monday, beating wildcard Josh Goodall 6-4, 6-4 to reach the second round at Queen's Club. Another former world number one Marat Safin, who has never made a secret of his dislike for grass, made harder work of the transition, beating qualifier James Ward 4-6, 6-1, 6-4.
Lleyton Hewitt will be eager to test his new-found confidence on clay against former champion Gaston Gaudio in the French Open second round on Thursday.
Tracking the key moves this week in the European transfer market
Hingis and Clijsters entered the two showcourts at Melbourne Park at almost the same time for their second-round matches.
Australian veteran Lleyton Hewitt gave a glimpse of his grasscourt arts to beat Juan Martin del Potro in Friday's quarter-finals of the Aegon Championships.
Rafael Nadal battled the rejuvenated Australian to finally bury him 2-6, 6-3, 7-5 in the Hamburg Masters semi-final.
A back injury forced Lleyton Hewitt to withdraw from the Miami Masters before his second-round match.
