Murray arrived in Russia having sealed back-to-back Masters Series titles in Cincinnati and, last week, Madrid, after reaching the US Open final in between.
And the 23-year-old, who lost to Andy Roddick in the semi-finals last year, dismissed concerns about his form despite struggling to find his best tennis since reaching the Australian Open final in January.
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Conservatives are far more open to reaching out to someone with a different point of view than a liberal is.
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Meanwhile back on court, Radwanska continued her preparations for next week's Australian Open by reaching the final of the Sydney International event.
The high spot of big-serving Rusedski's career so far has been reaching the final of the US Open in 1997.
Henin went out to Argentina's Gisela Dulko in her first tournament since reaching the final of the Australian Open in her grand slam comeback.
Swede Soderling had a tremendous 2009, reaching the final of the French Open, but this year had lost in the first round of all his tournaments.
Murray -- who has struggled for form this year after reaching the final of the Australian Open in January -- slumped 6-3 6-4 to the 13th-seeded Spaniard in just 96 minutes.
Murray, who now lost successive first round matches after reaching the final of the Australian Open in January, was beaten 6-2 6-1 by world number 33 Philipp Kohlschreiber in just over an hour of his maiden clay-court match of the season.
With top-ranked Azarenka and Serena Williams on the other half of the draw, Radwanska's main obstacles to reaching the final are 2011 French Open champion Li Na, who beat Olga Goortsova of Belarus 6-2, 7-5 to reach the third round, and potential semifinal rivals Sharapova or No. 5 Angelique Kerber, who advanced with a 6-3, 6-1 win over Lucie Hradecka.
She won the Hobart WTA tournament in January before reaching the third round at the Australian Open.
Del Potro, reaching his first U.S. Open semifinals, will face either Fernando Gonzalez or Rafael Nadal, whose quarterfinal match was suspended Thursday night because of rain.
Russell's compatriot Brian Baker enjoyed a more successful opening day, reaching the second round of the Australian Open for the first time in his career, beating Florida-based Russian Alex Bogomolov Jr. 7-6 (7-4) 6-3 6-7 (0-7) 3-6 6-2.
She followed that up by reaching her first Grand Slam semifinal at the Australian Open this January, beating Williams to get there.
Haas, whose wife is due to deliver their first child in two months, is battling neck pain he suffered reaching down to pick up a towel at the Northern Trust Open.
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On reaching the shale, the mixture of water and fracking fluid bursts open the rock and the sand keeps the fractures open, allowing the gas to flow to the surface.
Of the overseas challengers, Australian Geoff Ogilvy has used his 2006 US Open victory as a springboard and is a realistic contender after reaching fourth in the world with two wins so far this year.
Ivanovic, French Open champion in 2008, was pleased with her form and told reporters she still harbors hopes of reaching No. 1 in the world.
Mr. Gimelstob competed on tour from 1996 through 2007, won the 1998 Australian Open and French Open mixed doubles titles with Venus Williams as his partner, and was ranked as high as 63rd while reaching the 3rd round of a major 5 times in his career (thrice at Wimbledon, twice at the U.S. Open).
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