Robert Karlsson shot a 5-under-par 65 yesterday to take a three-stroke lead after the second round of the St. Jude Classic in Memphis, Tenn.
Karlsson started a stroke behind first-round leader David Mathis and carded six birdies and a bogey to reach 9-under.
Colt Knost (68) and Keegan Bradley (67) were tied for second.
John Merrick (69) was 5-under, and Fredrik Jacobson (65) and Harrison Frazar (65) were another stroke back. Brandt Snedeker, The Heritage winner in April, shot a 66 to top the group at 3-under that included Mathis (72).
In other golf news:
* Mindy Kim maintained her two-stroke lead in the LPGA State Farm Classic in Springfield, Ill., following her opening career-low 64 with a 5-under 67.
* Bob Tway birdied the 18th hole for a 9-under-par 63 and a one-stroke after one round of the Champions Tour's Greater Hickory Classic in Conover, N.C.
* Robert Rock shot a 4-under 68 to take a one-shot lead after two rounds of the PGA European Tour's Italian Open in Fiano.
* Jo-Wilfried Tsonga defeated an exhausted Rafael Nadal, 6-7 (3), 6-4, 6-1, in the quarterfinals at Queen's Club in London. Also reaching the semifinals were Andy Roddick and Andy Murray.
* Top-ranked Caroline Wozniacki eased into the semifinals of the Sony Ericsson Open in Copenhagen, Denmark, with a 6-0, 6-1 victory over Italian Alberta Brianti. Also advancing were qualifier Mona Barthel, fourth-seeded Lucie Safarova and 112th-ranked Petra Martic.
* Suriname federation president Louis Giskus acknowledged getting $40,000 in cash at a meeting with then-FIFA presidential candidate Mohamed bin Hammam that is being investigated in a bribery scandal. Soccer's world governing body suspended bin Hammam and FIFA's Trinidadian vice president Jack Warner, pending a full inquiry into the corruption crisis.
* Officials in Italy and Finland opened independent investigations into alleged match-fixing in their respective nations.
* Alex Meyer won the men's 10-kilometer race at the USA Swimming Open Water National Championships in Fort Lauderdale, Fla., while Eva Fabian survived choppy ocean waters to win the women's event.
* U.S. Olympic gold medal-winer Janet Evans, 39, told the Associated Press in an exclusive interview that she has been training hard for 6 months with an eye on qualifying for next year's Olympic trials, with her sights set on earning a spot on the U.S. team for the London Games in 2012.
* La Salle senior soccer player Ryan Richter won the Atlantic 10 Sportsmanship Award.
* Ron Hornaday Jr. got his record 48th career NASCAR Camping World Trucks Series victory in the caution-filled race at Texas.
* American cyclist Philip Zajicek has been banned for life after admitting to multiple doping violations in a case stemming from an investigation into EPO and human-growth hormone trafficking from China for nearly 200 athletes.