Rafael Nadal hopes his hard work will pay off in a rewarding end of the season, starting this week in Cincinnati and extending into the U.S. Open.

The eighth-ranked Spaniard comes into the Western & Southern Open after losing to No. 4 Kei Nishikori in the quarterfinals of the hard-court Rogers Cup in Montreal.

Belgium midfielder Kevin de Bruyne might stay at Wolfsburg this season, saying Monday he would remain with the Bundesliga club after being prompted to do so by a television personality.

De Bruyne was linked with a move to Premier League side Manchester City but the 24-year-old Belgian said at the Sport-Bild awards that he liked the familiar atmosphere at Wolfsburg.

Maria Sharapova says she's still working through a minor leg injury.

The second-ranked Sharapova hasn't played since Wimbledon, where she lost to Serena Williams in the semifinals July 9. She was supposed to return last week in Toronto but withdrew after getting hurt in training.

Christian Benteke scored his first Premier League goal for Liverpool on Monday to give his new team a 1-0 win over promoted Bournemouth in a game that was marked by two disputed refereeing decisions.

Benteke met a cross at the far post for an easy tap-in in the 26th minute, although the goal was questionable as Philippe Coutinho had tried to reach the ball first from what was a clear offside position.

Athletic Bilbao ended a 31-year trophy drought with a 1-1 draw at Barcelona on Monday, claiming the Spanish Super Cup with a 5-1 aggregate victory over the reigning European champions.

After Bilbao's stunning 4-0 win in Friday's first leg, Barcelona threatened a comeback when Lionel Messi put the hosts ahead a minute before halftime. But their hopes of an improbable turnaround diminished when Gerard Pique earned a rash red card for screaming in the face of a line judge in the 56th.

Olympic champion Asli Cakir Alptekin has agreed to give up her 1,500-meter title and serve an 8-year ban for blood doping, dealing another blow to track and field.

A settlement by the Turkish runner and the IAAF was announced by the Court of Arbitration for Sport on Monday, days before the world championships open in Beijing.

Researchers from Kansas, Michigan and Nebraska are modifying an oilseed for use as a potential diesel replacement.

Their work on Camelina sativa is focused on lowering its viscosity — essentially, its resistance to flowing. Plant oils typically have a high enough viscosity that they build up in engines, limiting their use as petroleum product replacement, The Topeka Capital-Journal (http://bit.ly/1HPGAjE ) reports.

A technical problem at an air traffic control center in Virginia that caused hundreds of flights to be delayed or canceled along a large swath of the U.S. East Coast was possibly caused by a software upgrade, according to a statement from the Federal Aviation Administration on Sunday.

The FAA said the upgrade was designed to provide more tools for controllers, but that the new features have been disabled while the systems contractor completes an assessment of the malfunction.

A psychological wound known as moral injury is gaining attention in the aftermath of the wars in Iraq and Afghanistan, with U.S. veterans now being treated for these injuries to the soul — even as medical experts debate whether moral injury is a condition unto itself or a subset of post-traumatic stress disorder.

Some questions and answers about moral injury, and how it compares with and differs from PTSD:

A chemical leak sent at least 15 people to a hospital for treatment before it was stopped at a plant on Terre Haute's south side in the U.S. state of Indiana, authorities said.

Firefighters say sulfur dioxide leaked at Hydrite Chemical Co. on Saturday night and winds carried fumes to nearby Hulman-Mini Speedway, where a crowd was watching auto races.