The 178 cm midfielder began his NASL career in the summer of 1978 with the Dallas Tornado. Haaskivi played in 1979–80 with the Houston Hurricane and 1981–82 with the Edmonton Drillers. He led the league in assists in 1981 with 21 and helped the Drillers win the 1980–81 NASL indoor championship and was named the MVP of the finals. He finished his NASL career with 112 points in 135 games. Haaskivi began his MISL career in the league's inaugural season of 1978–79 with the Houston Summit. Playing the next season with the Summit as well, he was named an MISL all-star in both seasons. The team lost the championship to the New York Arrows in 1980. Haaskivi went on to star with the Cleveland Force from 1982–88. While with the Force he led the league in assists in the 1986–87 season. He then played one season for the Baltimore Blast before returning to Cleveland as player-coach of the Cleveland Crunch in 1989. He retired as a player after the 1991–92 season when the MISL, by then named Major Soccer League, folded. The Crunch moved to the National Professional Soccer League. Haaskivi served as color analyst on the team's radio broadcasts. Haaskivi finished his career in the top ten of several MISL career statistical categories, including fifth in points with 683, tied for ninth in goals with 297, second in assists with 386, and eights in games played with 425. He was an eight-time league all-star selection and was named MVP of the 1987 All-Star Game in Los Angeles.
International
Haaskivi played 12 full internationals for Finland, notching three goals in the process. In a 1982 friendly in Helsinki against England, celebrating the Finnish F.A.'s 75th anniversary, he scored on a penalty kick as the Finnish team lost 1–4. He also scored against Italy's World Cup Legend, Dino Zoff, in Turin, Italy during a 1978 World Cup qualifier.
Coaching career
During the mid-1990s he served as the first director for IMG's soccer academy in Bradenton. He was assistant coach of the U-17 U.S. National Teams. From 2001 to 2004 he was head coach and general manager of Pittsburgh Riverhounds, an A-League team. He also coached in Cleveland as the men's and women's head coach for the Myers University Mustangs, and NAIA school. Served as the director of coaching for the Cleveland United and the Braden River soccer club in Florida. Currently works for the US Soccer Federation as a Youth National Team Scout.
Haaskivi is brother-in-law of former star Finnish ice hockey player Matti Hagman and uncle to Calgary Flames Left Wing Niklas Hagman. His father, Olavi Haaskivi, served as the Director of Coaching for the Finnish Football Association for 35 years. His son is the actor Olli Haaskivi. Daughter, Nina Haaskivi.