Djokovic joins Nadal in ATP Finals semis

(GLYN KIRK / AFP/Getty Images)

Unbeaten since losing the U.S. Open final to Rafael Nadal, Djokovic joins the top-ranked Spaniard in the season-ending ATP World Tour Finals semifinals after a three-set win over Juan Martin del Potro.

Sports photo galleries

Westfield takes 6A North in overtime win.

Rachael Ulsh scored twice to lead the Bulldogs past Fairfax.

Redskins lose to the lowly Vikings

Washington wilts in the second half, falls, 34-27.

Tony Dorsett diagnosed with signs of CTE

Degenerative brain disease that has been linked to head trauma strikes the Cowboys Hall of Famer.

Century holds off No. 1 Glenelg

Sami Bilaozynski in double-OT to seal the win for Century and end top-ranked Glenelg’s season.

River Hill heads to state semifinal with overtime win

Two goals from Sheridan Street put the Hawks ahead of Centennial in the 3A East region final.

NFL power rankings

Mark Maske assesses the league’s top teams.

Flint Hill sweeps Holy Cross for City Championship

The Huskies defeated the Tartans, 25-10, 25-18, 25-14, Monday evening in Bladensburg.

No. 5 St. Stephen’s/St. Agnes claims ISL field hockey title with 3-0 win over Holton-Arms

After a scoreless first half, Saints freshman Olivia Gilliam scored twice in five minutes to lead the Saints to victory on Sunday afternoon at Episcopal high School in Alexandria.

Redskins beat Chargers in overtime, 30-24

Washington stops San Diego at the goal line to force the extra session.

Good Counsel claims back-to-back WCAC titles

The Falcons win, 1-0, against O’Connell for conference championship.

DeMatha holds off Gonzaga for the WCAC boys’ soccer title

Arion Assue’s 20th goal of the year makes the difference for the seventh-ranked Stags.

No. 4 Lake Braddock blows by No. 18 South County, 45-21

Bruins capi­tal­ize on turnovers, field goals in wild shootout win over the Stallions on Friday night in Burke.

Sports videos

Madison dominates in 6A North Liberty District conference finals

Madison dominates in 6A North Liberty District conference finals

The Warhawks won all three games in commanding win over the Patriots.
Episode 11: Hype and heartache

Episode 11: Hype and heartache

Damone Boone, Da’Shawn Hand’s uncle and former prep legend in Virginia, serves as a reminder that NFL glory does not await all top high school recruits. Meanwhile, Da'Shawn and the Woodbridge Vikings face a key road test with playoff implications.
Minnesota protesters call for Redskins name change

Minnesota protesters call for Redskins name change

Hundreds of demonstrators gathered outside the Minneapolis Metrodome, as the Washington Redskins were playing inside. The demonstrators called for the Redskins to change their name, saying it's racist.
Madison dominates in 6A North Liberty District conference finals

Madison dominates in 6A North Liberty District conference finals

The Warhawks won all three games in commanding win over the Patriots.
Westfield pulls out an overtime win in the 6A Regional Finals against Fairfax

Westfield pulls out an overtime win in the 6A Regional Finals against Fairfax

The Bulldogs came back from a 1-0 deficit with seven minutes left, and go on to win in overtime.
Time-lapse of Russian Soyuz rocket Launch

Time-lapse of Russian Soyuz rocket Launch

Time-lapse video shows the rocket carrying the Olympic torch preparing and launching from the Russian-operated Baikonur cosmodrome in Kazakhstan.
Dolphins’ Incognito 'trying to weather the storm'

Dolphins’ Incognito 'trying to weather the storm'

Suspended Miami Dolphins player Richie Incognito says he's "trying to weather the storm" as the NFL investigates allegations he bullied teammate Jonathan Martin.
Dorsey balances Good Counsel and national team commitments

Dorsey balances Good Counsel and national team commitments

Senior All-Met Imani Dorsey directs the Falcons offense despite missing two weeks of the season to attend a U.S. U-18 national team camp.
Olympic torch journeys into space

Olympic torch journeys into space

A three-man crew successfully carried the Olympic torch aboard the International Space Station on Thursday.
The story of the man for whom the Redskins are named

The story of the man for whom the Redskins are named

As a child, Barry Zientek of Reading, Pa., spent time with the Washington Redskins' namesake, Lone Star Dietz. He shares a bit of Dietz's celebrated - and controversial - history.