Roundup

Et cetera: : The 20th showdown between sisters Serena and Venus Williams will occur Thursday in the semifinals of the Sony Ericsson Open in Key Biscayne, Fla., after top-ranked Serena beat unseeded Li Na, 4-6, 7-6 (1), 6-2, and No. 5 seed Venus defeated No. 26 seed Iveta Benesova, 6-1, 6-4. Also, Roger Federer advanced to the semifinals by beating Andy Roddick 6-3, 4-6, 6-4. ... Evgeni Malkin and Sidney Crosby scored power-play goals and the host Penguins beat the Devils, 6-1, to improve to 13-1-2 since Feb. 25. ... Sen. John McCain unveiled a resolution urging a presidential pardon for the late black boxing heavyweight champion Jack Johnson, who was sent to prison nearly a century ago because of his romantic ties with a white woman. McCain, an Arizona Republican, said he's sure President Barack Obama "will be more than eager" to pardon Johnson, who was convicted in 1913 of violating the Mann Act, which made it illegal to transport women across state lines for immoral purposes. ... Churchill Downs will seek approval Tuesday from the Kentucky Horse Racing Commission to bring in temporary lights to experiment with three nights of racing for the spring meet. ... Mariah Ripken, niece of Cal and Bill Ripken, pitched a five-inning no-hitter, striking out nine with no walks as the Havre de Grace softball team beat Aberdeen, 5-0.