Rookies Jim Harbaugh and Ron Morris hooked up on a 65-yard scoring play last night to give the visiting Chicago Bears a 10-3 preseason triumph over Miami, a game in which Dolphins quarterback Dan Marino dislocated a finger on his throwing hand and will be sidelined four weeks.

The game was the first NFL game shown on cable channel ESPN. The game was officially sold out; 63,451 fans attended.

Harbaugh, the Bears' No. 1 pick from Michigan, passed to Morris, a second-round choice from Southern Methodist, on a fly pattern with 10:49 left in the game. Morris had gotten behind cornerback Don McNeal and safety Liffort Hobley on the right sideline.

Marino was injured in the second quarter diving for a fumbled snap and it appears he will miss the season opener at New England Sept. 13. Marino missed three weeks of preseason in 1984 with a broken finger, but went on to throw an NFL-record 5,084 yards and 48 touchdowns.

Miami linebacker John Offerdahl left the game in the second quarter with a bicep muscle injury; rookie quarterback Jim Karsatos strained his left knee.

Giants 19, Patriots 17: George Adams rushed for 81 yards and a touchdown and Phil Simms led New York on three consecutive scoring drives in a preseason opener in Foxboro, Mass.

With New England leading, 7-3, Simms entered the game with 8:19 left in the first half and the Patriots' backup defense on the field.

Simms, last season's Super Bowl most valuable player, threw a 14-yard touchdown pass to Zeke Mowatt on the first drive, making the score 9-7. Simms then directed a 56-yard drive capped by Raul Allegre's 39-yard field goal on the last play of the first half that gave the Giants a 12-7 halftime lead.

It went to 19-7 when Adams, the Giants' 1985 top draft choice who was sidelined all last season with a hip injury, ended an 80-yard drive with a one-yard touchdown dive.