Jon Koncak saved third-ranked Southern Methodist from a Southwest Conference upset by Texas Christian yesterday in Dallas. But there was little celebrating.

SMU Coach Dave Bliss was upset because guard Carl Wright left the bench for the dressing room with a minute to play in the Mustangs' 74-70 victory.

Koncak made 10 field goals and nine of 10 free throws to score 29 points. He also had 13 rebounds, blocked two shots and made four free throws in the final 20 seconds.

"It was two hours of teeth-pulling," said Bliss. "There's been a lot of talk about us being the No. 2 team in the nation, but, although that may be nice, you had better play hard when you come into a game like this against a good team like TCU."

He said Wright was pulled from the game because he "didn't run things the way I wanted it run. All he had to do was keep the ball outside and he wouldn't do it."

Wright, who had 15 points and 10 assists, said he left the bench because "my leg was bothering me."

Reserve guard Johnny Fuller scored 11 points and made two key steals during a 10-point run midway through the second half for the Mustangs (15-1, 5-0).

The Horned Frogs (9-8, 1-5) got a season-high 28 points from Dennis Nutt and 17 from Carven Holcombe.

TCU Coach Jim Killingsworth said, "We played pretty good but SMU just has so many good athletes they cause a lot of trouble. I think SMU is playing better than Georgetown right now."