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It's the No. 1 vs. the GOAT: Halep and Serena set for Aussie showdown

Something has to give when Simona Halep and Serena Williams square off in the fourth round of the Australian Open.

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Top Headlines

DeMarcus Cousins returns to basketball with standing ovation

1:56

Cousins scores 14 points in Warriors debut

1:31

Curry, Thompson drench Cousins with water after first game with Dubs

0:44

Cousins hammers dunk for first points with Warriors

0:21

Cousins hits back-to-back 3s

0:31

Australian Open

Day 6 action

championship sunday preview

Conference championship predictions and what you need to know

Winners and projections for every playoff game, plus key matchups, betting nuggets and more. Catch up on the conference championship matchups here.

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Saturday Night in the NBA

Paul George is the most disruptive force in the NBA

This season, Paul George is clearly the best defensive player in the NBA, and he's showing why it matters.

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UFC Fight Night Brooklyn

Early Prelims

Saturday's Top Soccer

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On This Date: Jan. 19, 2002

UFC signature moves

  • Photo Illustration by Eric Heintz
  • The UFC's must-see moves

    The world's best MMA action is coming to ESPN. These are the moves you need to know, selected by our team of fighting experts.