Click here for day two results
Click here for more Wimbledon news

Tim Henman took his place in the Wimbledon second round on Tuesday afternoon with a 6-2 7-6 3-6 6-1 victory against Tomas Zib of the Czech Republic.

The British number one rushed through the first set when his lucky-loser opponent suffered a back injury which needed on-court treatment.

Henman was forced to save three set points in a tense second set tie-break which he eventually secured 13-11 before Zib defied his world ranking of 154 to fight back in the third.

The underdog, who had never won a Grand Slam match, could not raise his game in the fourth, however, and Henman eventually surged to a typically rollercoaster victory.

American big guns Serena Williams and Andre Agassi got their bids for glory in SW19 off to winning starts.

Women's champion Serena began the defence of her title in confident fashion on Centre Court, breezing through her first-round clash with Jill Craybas 6-3 6-3.

The world number one opened in brilliant sunshine with a 92mph serve and quickly got up to 108mph to provide an early indication that, despite her failure to reach the French Open final, she remains the woman to beat.

Men's world number one Agassi dropped a set to Britain's Jamie Delgado before progressing to round two.

The 1992 champion took the first set 6-4 and raced through the second 6-0.

But just when Delgado looked set to fold the Briton managed to summon up new strength and kept the match alive by taking the third set 7-5.

Agassi regrouped to take the fourth set 6-4 and close out the match.

Baltacha took Dokic to three sets in their first-round clash before finally bowing out.

Baltacha dropped the first set 6-3 against the former Wimbledon semi-finalist.

But she roared back in great style to level up by taking the second 6-1.

The third and deciding set was tight but Dokic held her nerve to take it 6-4 to progress to round two.

French Open champion Justine Henin-Hardenne made comfortable progress into the second round.

The number three seed beat Ukrainian Julia Vakulenko 7-5 6-1.

The first set was tight but Henin-Hardenne broke in the second game of the second set and went on from there to wrap up a comfortable victory.

Women's number eight seed Jennifer Capriati is through to round two after a confidence-boosting win on Tuesday.

The American beat Myriam Casanova of Switzerland in straight sets in her opener.

Capriati raced through the first set 6-1 and took the second 6-3 to close out the match.

Belgium's Olivier Rochus caused a big shock by running out a straight-sets winner over seventh seed Guillermo Coria of Argentina, 6-4 6-3 6-2.

He stands at only 5ft 5in, but Rochus likes grass and Coria hates the surface, and the prospect of an upset always looked good based on those facts.

Like 6ft 10in giant Ivo Karlovic, who romped past top seed and defending champion Lleyton Hewitt on Monday, Rochus appeared to have a far greater desire than his opponent and a propensity to attack the net, rather than hog the baseline.

Last year's beaten men's finalist David Nalbandian cruised into round two.

The sixth-seeded Argentine star was simply too good for Vladimir Voltchkov of Belarus.

Nalbandian took the first set 7-5 after a tight battle, but the second and third sets proved much easier.

The Argentine took them 6-4 6-2 to book his spot in the next round.

The Spaniard, recent winner of the French Open at Roland Garros, crushed Frenchman Jean-Rene Lisnard 6-2 6-1 6-3 in a one-sided encounter on Centre Court.

Elena Dementieva roared through to the second round of the women's singles with a comprehensive demolition of Angelika Roesch.

Dementieva, seeded 15th, was in aweseome form as she took apart her German opponent.

She raced through the first set 6-2, aided by a string of unforced errors from Roesch.

And the second set was even easier as Dementieva stormed through it 6-1 to complete her victory.

Men's 14th seed Xavier Malisse crashed out in round one to unseeded Cyril Saulnier of France.

Belgian ace Malisse was never at the races as he went down to a comprehensive defeat.

He dropped the first set 6-4 to an opponent playing at the top of his game.

And Saulnier, his confidence boosted by that success, took the next two sets 6-3 6-2 to clinch a famous win.

Martin Verkerk saw his chances of another fairytale Grand Slam run ended early in SW19.

The shock French Open finalist went out in round one on Tuesday to Sweden's unseeded Robin Soderling.

Verkerk, seeded 21 here, lost 6-3 6-4 6-7(5-7) 6-1.

Women's number 10 seed Anastasia Myskina had a short afternoon's work against Henrieta Nagyova.

The Russian took the first set 6-4 and was 3-0 up in the second when her Slovakian opponent retired hurt.

With Anna Kournikova missing through injury Maria Sharapova and Ashley Harkleroad were billed early as the pin-up girls of Wimbledon 2003.

And when they meet in round one on Tuesday Sharapova emerged victorious.

The 16-year-old Russian crushed her American opponent 6-2 6-1.

Men's 11th seed Jiri Novak of the Czech Republic is through to round two after an early scare.

Novak dropped the first set 6-3 to Luis Horna of Peru but roared back to take the next three.

Men's number 15 seed Arnaud Clement of France is through to round two after coming through a five-set epic against Robby Ginepri.

Clement won 10-8 in the fifth after the match was carried over from Monday.