Serena Williams pulled out of her Indian Wells semi-final on Friday, 14 years after her sister Venus withdrew at the same stage to spark a fan uproar that led to a Williams boycott of the event.

Serena withdrew moments before her scheduled semi-final match on Friday night with a right knee injury, ending her hopes for a storybook finish after she made the decision several months ago to finally return to the joint WTA and ATP tournament.

Iran's outgoing coach Carlos Queiroz was stopped from flying out of the country Saturday over tax matters, media reports said, forcing his players to leave Tehran for Europe without him.

The 62-year-old Portuguese resigned his post on Friday, citing external "pressures" just six months after extending his contract until 2018. He is due to finish his tenure at the end of March after friendlies against Sweden and Chile.

Carlos Queiroz has quit as Iran coach citing external "pressures" just six months after extending his contract until 2018, the Iranian Football Federation confirmed on Friday.

The 62-year-old's future has been in doubt since the team returned from the World Cup in Brazil, where he won respect for shaping a plucky team out of a modestly talented squad, but ultimately lost out in the first round.

Germany coach Joachim Loew on Friday recalled Bastian Schweinsteiger, who has not played for the national side since their World Cup triumph, for a friendly against Australia and a Euro 2016 qualifier in Georgia.

The Bayern Munich midfielder was named captain when Philipp Lahm retired from the national team after winning the world title in Brazil last July but had yet to play after being sidelined through a back injury.

Holders Real Madrid will have to overcome city rivals Atletico in the Champions League quarter-finals, in a repeat of last year's final, while Barcelona face familiar opponents in Paris Saint-Germain after the draw made Friday in Nyon.

Portuguese giants Porto host Bayern Munich of Germany in the first leg of their last eight matchup while Italian champions Juventus welcome the Monaco side who knocked out English side Arsenal in midweek.

Roma's slump reached a new low with a humiliating exit from the Europa League on Thursday, while Everton was heavily beaten to leave England without a team in European quarterfinals for the first time since 1993.

Italian representation in the Europa League was cut from five teams to two after Inter Milan and Torino failed to overturn first-leg deficits in the last 16, joining Roma in getting eliminated.

Dutch coach Louis van Gaal says he will retire from football at the end of his spell in charge of Manchester United.

The 63-year-old Van Gaal tells British newspaper The Daily Telegraph that "this is my last job. For sure. I have to pay attention to my kids, my grandchildren, but also to my wife."

Juventus midfielder Paul Pogba will be out for nearly two months after tearing a muscle in his right thigh.

Pogba was hurt on Wednesday, midway through the first half of the 3-0 Champions League victory at Borussia Dortmund which sent the Serie A champion to the quarterfinals.

Phoenix took an important 74-72 victory against New Orleans on Thursday in a clash of two teams fighting for the last playoff spot in the NBA Western Conference, with the Suns capitalizing on the absence of Pelicans star Anthony Davis.

The result moved the Suns within 1-1/2 games of the Pelicans, who are ninth in the West.

Novak Djokovic didn't have to hit a ball to get into the semifinals of the BNP Paribas Open on Thursday when opponent Bernard Tomic withdrew because of a back injury.

Tomic's withdrawal was announced about five hours before he was to play the top-ranked Djokovic, a three-time champion at Indian Wells who won his first three matches in straight sets. He had beaten Tomic each of the three times they've played.