Britain's Andy Murray claimed a straight-set win over David Goffin to reach the second round of Indian Wells.
The three-time Grand Slam champion, 36, revealed at last month's Dubai Tennis Championships he is not planning to "play much past this summer".
In his first match since then, Murray raced to a routine 6-3 6-2 victory against the Belgian qualifier.
However, Britain's Katie Boulter and Jack Draper suffered first-round defeats in California.
Murray's future has come under increased scrutiny after struggling for wins in recent months, winning just two of his eight matches before Indian Wells.