Conversation so far:
When did Leander Peas David Cup career start?
Leander Paes started his Davis Cup career in 1990.
Did Leander Paes win his first Davis Cup match in 1990?
Leander Paes and his partner beat the Japanese team in a five-set encounter.

Question: Who did he play doubles with?
Self-contained rewrite: Who did Leander Paes play doubles with in the 1990 Davis Cup?