Dennis Johnson scored 24 points and Larry Bird had 22 points and 11 rebounds as the Celtics rallied from a 21-point deficit for a 114-101 victory over the Seattle SuperSonics yesterday in Boston. It was Boston's 11th straight victory.

Boston improved its home record to 21-1. Seattle, which has lost nine of its last 11 games, is 4-22 on the road.

"We really weren't ready to play," Celtics Coach K.C. Jones said. "We were completely outhustled at the start. We weren't bad, we were ugly, totally ugly. Imagine us falling behind by 21 points after 13 minutes of play."

Scott Wedman, filling in for injured Kevin McHale for the fifth straight game, suffered a cut lip in the second period, then returned to lead a 31-14 third quarter that moved Boston from a 63-51 halftime deficit to an 82-77 lead.

Seattle took a 37-20 first-period lead and made it 47-26 before Boston began its comeback.

Xavier McDaniel led Seattle with 21 points. Knicks 103, Lakers 96

In Inglewood, Calif., reserve Ken Bannister scored 18 points as New York withstood 40 points by Kareem Abdul-Jabbar to end Los Angeles' three-game winning streak.

Gerald Wilkins had 16 points for the Knicks, who won for only the sixth time in 23 road games this season. Rookie Patrick Ewing (nine points) missed 12 straight shots and sat out much of the contest with foul trouble. Mavericks 100, Jazz 97

Mark Aguirre's three-point play and Sam Perkins' two foul shots in the final 34 seconds allowed Dallas, at home, to win its fifth straight.

Dallas trailed by 11 points late in the third quarter, but rallied as Dale Ellis hit three three-point shots.

With the game tied at 95, Perkins made a steal and Aguirre got by Adrian Dantley for a layup. Dantley fouled out, and Aguirre hit the free throw. Utah's Karl Malone brought the Jazz within one with a layup with 16 seconds to go. Dallas ran off 12 seconds before Utah fouled Perkins. He made both foul shots. Pacers 131, Bulls 106

Vern Fleming scored 27 points, Steve Stipanovich had 24 and Wayman Tisdale 21 as Indianapolis, at home, got its third straight victory and fifth in seven games