Paul Pierce scored 23 points and Rajon Rondo added 15 points and 15 assists to spark the Boston Celtics over the Miami Heat 93-91 in over-time on Sunday to level their NBA playoff series.

The best-of-seven Eastern Conference final showdown will continue with game five on Tuesday at Miami and game six back in Boston on Thursday.

Lebanon lost 0-1 to Qatar on Sunday in the first match of the final Asian qualifying round for the 2014 FIFA World Cup.

Uruguayan-born striker Sebastian Soria scored in the 63rd minute of the Group A match, taking advantage of a poor pass from Ramez Dayoub and then eluding goalkeeper Ziad El-Samad for an easy tap-in.

Sara Errani of Italy and Angelique Kerber of Germany both reached the French Open quarterfinals for the first time on Sunday with straight sets wins in fourth round action.

Errani, seeded 21, defeated Svetlana Kuznetsova of Russia 6-0, 7-5, while 10th seed Kerber ousted Petra Martic of Croatia 6-3, 7-5.

Looking back, the 4-0 victory over Ecuador on Saturday with Sergio Aguero, Gonzalo Higuain, Lionel Messi and Angel Di Maria scoring may be the moment that star-studded Argentina finally began to meet expectations.

The Gauchos were in control from the first minute, producing the quick passes and perfect finishing that's expected from a team that has four of the world's best forwards playing up front together.

Kevin Durant scored half of his 36 points in the fourth quarter Saturday as the Oklahoma City Thunder beat the San Antonio Spurs 109-103 to tie the NBA Western Conference Finals at two games apiece.

Defensive stalwart Serge Ibaka contributed some unexpected offence, scoring 26 points on perfect 11-for-11 shooting for the Thunder, who improved to 7-0 at home this post-season.

Former world number one Caroline Wozniacki made an angry exit from the French Open on Saturday and demanded Roland Garros adopt line judging technology in common with the three other Grand Slams.

Wozniacki slumped to a 6-1, 6-7 (3/7), 6-3 loss to Estonian 23rd seed Kaia Kanepi in a stormy third round clash which ended in fading light.

England were bracing for a fresh wave of gloomy medical bulletins here Sunday after a victorious Euro 2012 send-off against Belgium was soured by injury concerns surrounding Gary Cahill and John Terry.

After a demoralizing week which saw Gareth Barry and Frank Lampard sidelined for the tournament, England had hoped to draw a line under their rising casualty list with a confidence-building performance against the Belgians.

Some love it, some hate it, others are not quite sure what to make of it - but all agree that Twitter is on the march among tennis professionals.

Serena Williams is a frequent user of the social media platform as is Caroline Wozniacki, but the world's best paid sportswoman Maria Sharapova has little time for it.

Franck Ribery will have an integral part to play for France at Euro 2012, as "Les Bleus" seek to erase the painful memories of an inept display at the last World Cup in South Africa.

This past season saw 29-year-old Ribery enjoy his best campaign since joining Bayern Munich from Marseille in 2007 but the winger has struggled desperately to replicate his club form on the international stage.

The Boston Celtics, buoyed by a return to their home floor, jumped to a big lead and held on to beat Miami 101-91 on Friday and narrow the gap on the Heat in the NBA Eastern Conference Finals.

Kevin Garnett scored 24 points with 11 rebounds, Paul Pierce added 23 and Rajon Rondo chipped in with 21 as the Celtics narrowed the gap in the best-of-seven series to 2-1 after dropping the first two games in Miami.