The tennis players Ivan Lendl (Czechoslovakia, 1978–92/United States, 1992–94) and Mats Wilander (Sweden) met 22 times during their careers. Lendl leads their overall head-to-head series 15–7.
Lendl and Wilander's rivalry, with 5 Grand Slam finals between them, has the fourth most of any rivalry. At the time of Wilander's 1988 USO triumph, their 5 finals were the most between any two players.
References
Lendl–Wilander rivalry Wikipedia(Text) CC BY-SA