SATURDAY

MAJOR LEAGUE BASEBALL

Boston at Chicago White Sox

1 p.m. WTTG-5, WBFF-45

Toronto at Baltimore 4:30 p.m. WDCA-20, WNUV-54 [WTNT-570, WBAL-1090, WAGE-1200, WNAV-1430]

Chicago Cubs at Houston 7 p.m. WGN

PRESEASON FOOTBALL

Washington at Miami 7:30 p.m. WUSA-9, Comcast SportsNet [WJFK-FM-106.7, WBQB-FM-101.5, WKIK-FM-102.9, WFMD-930, WFVA-1230, WNAV-1430]

New York Jets at Indianapolis

8 p.m. ESPN

SOCCER

D.C. United at Columbus

7:30 p.m. [WMET-1160, WYSK-1350 (Spanish), WPWC-1480 (Spanish), WACA-1540 (Spanish)]

OLYMPICS

See Saturday's editions

LITTLE LEAGUE WORLD SERIES

South Caroline, Md. vs. Owensboro South, Ky. noon ESPN2

Lamar National, Tex. vs. Redmond North, Wash. 3 p.m. ESPN

Cal Ripken Jr. World Series 4 p.m. Comcast SportsNet

Kutno, Poland vs. Shou-Tien, Taiwan 6 p.m. ESPN2

Davenport, Iowa vs. Lincoln, R.I.

8 p.m. ESPN2

GOLF

Champions Tour, Greater Hickory Classic 1:30 p.m. Golf Channel

LPGA, Wendy's Championship for Children 2 p.m. ESPN2

WGC, NEC Invitational 2 p.m. WUSA-9, WJZ-13

U.S. Amateur Championship

4 p.m. ESPN2

PGA, Reno-Tahoe Open (taped)

8 p.m. Golf Channel

TENNIS

ATP, Legg Mason Classic 1 p.m. Comcast SportsNet

AUTO RACING

NASCAR Busch Series, Cabela's 250 2 p.m. TNT

NHRA, Mid-South Nationals qualifying (taped) 10 p.m. ESPN2

HORSE RACING

Alabama Stakes, Saratoga BC Handicap and West Virginia Derby 5 p.m. ESPN

SUNDAY

MAJOR LEAGUE BASEBALL

Toronto at Baltimore 1:30 p.m. WDCA-20, WNUV-54 [WTEM-980, WBAL-1090, WAGE-1200, WNAV-1430]

Chicago Cubs at Houston 2 p.m. WGN

Atlanta at Los Angeles 4 p.m. TBS

Boston at Chicago White Sox

8 p.m. ESPN [WTEM-980]

OLYMPICS

See Sunday's editions

PROFESSIONAL LACROSSE

MLL Championship, Rochester/Philadelphia winner vs. Baltimore/Boston winner 1 p.m. ESPN2

LITTLE LEAGUE WORLD SERIES

Lamar National, Tex. vs. Owensboro, Ky. 1 p.m. ESPN

Morganton. N.C. vs. Conejo Valley East, Calif. 3 p.m. ESPN

Redmond North, Wash. vs. South Caroline, Md. 8 p.m. ESPN2

GOLF

Champions Tour, Greater Hickory Classic 1:30 p.m. Golf Channel

WGC, NEC Invitational 2:30 p.m. WUSA-9, WJZ-13

U.S. Amateur Championship

3 p.m. ESPN2

LPGA, Wendy's Championship for Children 5 p.m. ESPN2

PGA, Reno-Tahoe Open (taped)

8 p.m. Golf Channel

AUTO RACING

NASCAR Nextel Cup, GFS Marketplace 400 2 p.m. TNT [WRC-1260]

IRL, Honda Indy 225 3:30 p.m. WJLA-7, WMAR-2

NHRA, Mid-South Nationals (taped) 10 p.m. ESPN2

HORSE RACING

Pacific Classic and Ballerina Handicap 7 p.m. ESPN2

TENNIS

ATP, Legg Mason Classic

12:30 p.m. WUSA-9, WJZ-13