Goran Ivanisevic reached his fifth final on the ATP tour this year by overcoming his temper and the French veteran Guy Forget in a dramatic third set tie-break at the Italian Indoor tournament in Milan. The 24- year-old Croat defeated the unseeded Frenchman 6-7 6-3 7-6 in a two-hour match in which he came to the brink of withdrawal. In the deciding set Ivanisevic, leading 5-4, wasted two match points, netting a volley and receiving a dubious call on his serve. "It's better you go out for a cappuccino," he shouted at a linesman. The Croat lost his temper when a pass by Forget was called in. He threw his racket away and walked angrily to his chair. He returned to the baseline, jeered by the crowd, only after an ATP supervisor rebuked him. Still furious, Ivanisevic suffered a quick break for a 5-5 tie. Forget served to 6-5 but Ivanisevic, now with his temper under control, rallied to 6-6 and won the tie-breaker 7-4. In today's final Ivanisevic plays Marc Rosset of Switzerland, who defeated the defending champion, Yevgeny Kafelnikov of Russia, in the other semi-final last night.