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(CNN) -- Andy Murray began his U.S. Open campaign with a straight sets win Wednesday over India's Somdev Devvarman.

The fourth seed, a former losing finalist at Flushing Meadows, was tested in the first set which went to a tiebreak, but once secured, he cruised to victory 7-6 6-2 6-3 in two hours 26 minutes.

Murray was broken immediately to trail 2-0 but battled back to force the tiebreaker which he won 7-5.

He made the perfect start to the second set with another break, but conceded it immediately with a double fault on break point.

However, two further breaks saw him in total ascendancy and the pattern continued in the third set as he pulled two breaks clear.

Devvarman hit back to retrieve one as Murray served for the match but was broken again on his own service to concede victory.

Scot Murray admitted after the match he had been apprehensive at the start of another bid to win his first grand slam.

(CNN) -- Two-time champion Venus Williams has pulled out of the U.S. Open in New York, citing an illness that she says causes fatigue and pain in her joints.

Williams, who was due to play against Germany's Sabine Lisicki in the second round, has struggled with injury this season.

"I have been recently diagnosed with Sjögren's Syndrome, an autoimmune disease which is an ongoing medical condition that affects my energy level and causes fatigue and joint pain," she said in a statement on usopen.org.

"I enjoyed playing my first match here and wish I could continue but right now I am unable to. I am thankful I finally have a diagnosis and am now focused on getting better and returning to the court soon," she added.

Sister Serena, who thrashed Bojana Jovanovski 6-1 6-1 in her second round match, recently recovered from a freak foot injury suffered in a restaurant and subsequent blood clots in both lungs that she thought might end her playing days.

Meanwhile, number two seed Vera Zvonareva was made to work in her second-round match against Kateryna Bondarenko, dropping a set before winning 7-5 3-6 6-3.

(CNN) -- Australia's Nathan Lyon made a sensational Test debut as his five-wicket haul skittled Sri Lanka on the second day in Galle and left his side in a strong position.

Off-spinner Lyon, a controversial selection for the tour, took a wicket with his very first ball and ended with 5-34 as Sir Lanka crumbled to 105 all out.

Australia, who scored 273 in their first innings, reached 115-6 after a collapse of their own, but still led by 283 runs on a deteriorating wicket.

16 wickets fell Thursday with Australian all-rounder Shane Watson chipping in with three wickets in 10 balls, while another newcomer Trent Copeland struck in his first over.

But it was Lyon who made the biggest impression, becoming only the 14th bowler in Test history to take a wicket with his first ball as he removed Kumar Sangakkara, caught at slip by Michael Clarke.

Watson played havoc with the Sri Lanka middle order as he removed Thilan Samaraweera, Prasanna Jayawardene and Paranavitana, all trapped leg before wicket to reverse swing.

(CNN ) -- Transfer deadline day in Europe saw the usual frantic last-minute deals with English Premier League Arsenal swooping for a clutch of big name stars to strengthen their squad after a poor start to the season.

Despite the market opening at the end of May, clubs often wait until the final moment to conclude transfer deals, hoping to buy or sell at the best possible price.

England, as expected, with Arsene Wenger's team leading the way, saw the most money exchange hands, but there was also plenty of activity in the other major leagues in Italy, Spain, Germany and France.

The dream moves of transfer deadline day? Arsenal, thrashed 8-2 by Manchester United at the weekend, strengthened their defense with the signings of left-back Andre Santos from Turkish side Fenerbahce and German international center-half Per Mertesacker from Werder Bremen.

The 28-year-old Santos, who has won 22 caps for Brazil, has cost the London side $10m, whilst Bremen captain Mertesacker, 26, has a wealth of international experience, having played 75 times for his country.

"With this transfer to London a dream has come true, taking another step in my career. I have always considered the English Premier League an intriguing challenge," Mertesacker told the official Bremen website.

Arsenal also strengthened their midfield with the signing of Yossi Benayoun on loan from Chelsea and on the stroke of the deadline at 2300 local time, announced they had landed Everton star Mikel Arteta on a four-year deal.

Santos leaves a Fenerbahce side that have recently been found guilty of match-fixing, resulting in them losing their place in the Champions League.

Lugano told PSG's official website: "I am very happy to arrive in Paris. It is a great joy for me to know that I have arrived at a club with big ambitions. PSG are the most iconic French club and my goal is to help them get as high as possible."

Four players left Arsenal on a busy day for the Emirates club with Nicklas Bendtner the biggest name as he went to Sunderland on a season-long loan.

(CNN) -- England's Nick Dougherty could salvage a disastrous season as he led the European Masters after the first round but has major winners Rory McIlroy and Martin Kaymer as his nearest challengers at Crans-sur-Sierre.

Dougherty, rated one of the most promising golfers on the European Tour, has missed 21 cuts in a row to slip to 791st in the world rankings, but refound his form Thursday with an eight-under 63 in the Swiss Alps.

U.S. Open champion McIlroy and 2010 PGA Champion Kaymer were two shots back after 65s in the morning rounds, sharing second with England's Gary Boyd and Korean Lee Sung.

In a star-studded line-up, world number two and his stablemate and British Open champion Darren Clarke were tied for eighth after 67s. In an unusual twist, the 29-year-old Dougherty was interviewed by his golf presenter wife Diane after his round and admitted he had not been easy to live with during his unexpected slump.

(CNN) -- Dai Greene completed a memorable hat-trick of titles ahead of next year's Olympics in London by storming to victory in the 400 meters hurdles at the world championships in Daegu Thursday.

Greene, already the European and Commonwealth champion in the discipline, added the global crown to his tally with a scintillating performance to give Britain their first gold of the week.

He surged off the final hurdle to overtake Puerto Rico's Javier Culson with LJ van Zyl of South Africa taking the bronze. Double Olympic champion Angelo Taylor, troubled by a foot injury, finished out of the medals.

Greene, whose winning time was 48.26 seconds, timed his move perfectly in a race disrupted by two faulty starts and cool and windy conditions.
Coming off the last hurdle I had so much momentum
Dai Greene

"Coming off the last hurdle I had so much momentum," Greene told Channel 4. He will go into next year's London Games as favorite to complete the full set of medals in major championships.

Greene said he had been inspired by the surprise silver medal of teammate Hannah England in the women's 1500 meters final which preceded his event.