Stockholm  - Lennart Bergelin, former coach of Swedish tennis legend Bjorn Borg, has died at the age of 83, news reports said Tuesday.

Bergelin was the first Swede to win a Grand Slam when he won the 1948 mens' doubles at the French Open. He was among the best players in the world 1946-1955. , Bergelin coached Borg 1971-1983, with the now 52-year-old Borg winning 11 Grand Slams highlighted by five consecutive Wimbledon titles.

Bergelin also coached the Swedish Davis Cup team for five years, and during his tenure Sweden won its first Davis Cup title in 1975.

No details of the cause of death or funeral plans have been released.

In March, Borg's father Rune died after a battle with cancer. (dpa)