The 19-year-old American defeated the Serbian 6-4 0-6 7-5 despite trailing 3-1 in the third set.
And despite trailing 1-0 through an own-goal, the 'Blue Sharks' hit back with two strikes in the final nine minutes to see off Angola.
Williams has now beaten second-ranked Sharapova in their past 12 meetings, and was in control for most of the match despite trailing 3-1 in the second set.
Despite trailing in the delegate count, Santorum vowed as recently as last week to remain in the race until one candidate reached the 1, 144 delegates needed to capture the nomination.
Meanwhile, Romney and Huckabee are vowing to stay in the GOP race despite trailing McCain, who may still be searching for the magic formula to forge a truly "Big Tent" Republican party.
And like clockwork, despite trailing by 20 at one point in the third, the Knicks fought their way back in it, holding Boston scoreless on eight of its first nine possessions after the break.
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Wigan had gone into the interval trailing by six points, despite opening the scoring with an Andy Farrell penalty .
And I tend to be a trailing-edge adopter personally, despite having to stay on the vanguard professionally.
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All that led up to the ninth, with Mexico trailing badly and facing possible elimination despite the big win over the United States.
Despite its high-tech wizardry, Japan was trailing in the internet age.
This may also explain why Carly Fiorina, the Republican candidate for US Senate, is trailing the incumbent, Barbara Boxer, despite low approval ratings for Ms Boxer.
Investors still seem to believe there is more value in the stock than in Research in Motion, which has seen multiples drop to just 3-times trailing earnings while Earthlink is trading at around 21x despite net profit margins in the third quarter of just over 2%.
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But despite dominating territory and possession, the world champions spent the majority of the first half trailing England, with Morne and Francois Steyn both rattling the woodwork with penalty attempts.
Morne Steyn slotted the conversion and, despite having been outplayed for much of the half, the visitors went in at the break trailing just 13-7 after Carter missed yet another penalty chance.
Who admits to actually liking negative advertising despite the fact that these ads have a tendency to work, particularly for a candidate who is trailing in the race?
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