Bjorn Borg assured himself a berth in Sunday's final of the $200,000 WCT invitational with a 6-3, 6-1 victory over arch-rival Jimmy Connors tonight.

Borg will face Vijay Amritraj in Sunday's single final. Ilie Nastase was disqualified tonight by WCT officials with Amritraj leading, 6-3, 3-6, 1-0.

Nastase spent much of his match arguing with linesmen and the chair umpire. After a close call, Nastase went into a tirade lasting some 20 minutes, and was disqualified.

In the evening's first match, Eddie Dibbs continued his mastery of John Alexander, 6-4, 7-6.

Borg, 4-0 in the round-robin event, defeated Connors for the eighth consecutive time and raised his career record against Connors to 14-10.

After an exchange of breaks in the second and third games of the first set, Borg used his methodical ground strokes to break through in the seventh and ninth games.

The second set was all Borg as he broke Connors' serve in the second and fourth games. Only in the sixth game did Connors hold service. With Borg trying to serve out the set, the 23-year-old Swede fell behind, 0-30, but rallied to lead, 40-30. Two deuces followed before Connors drilled a forehand past the baseline to clinch it for Borg.

Connors said in a postmatch interview that he was not sure whether he would play Alexander, who is 0-4 in the tourney, in Saturday's first match.

"I'll make that decision at five minutes to one," Connors said, and refused to elaborate.

Dibbs was given a stiff test by Alexander before the Australian wilted under a barrage of passing shots.

Dibbs brought his all-time mark against Alexander to 7-1, but all the matches have been close; there have been seven tie breakers.

Alexander is 0-4 in this tournament, while Dibbs improved to 2-2.