OAKLAND, Calif. -- Toronto Raptors point guard Kyle Lowry, soon to be a free agent, had a meeting with backcourt partner DeMar DeRozan and Raptors coach Dwane Casey this week in the Bay Area, league sources tell ESPN.

The main impetus for the Casey-led assembly is unclear, but the Raptors are obviously under pressure to re-sign Lowry, who is projected to be one of the most coveted free agents on this summer's market.

Among Casey's objectives for the meeting, sources say, was to expose his players to the NBA Finals culture.

The meeting was significant enough that DeRozan flew in from Los Angeles for a day, a source said. Raptors reserve guard Norman Powell also attended the meeting, sources say.

Casey and Powell went on to attend Thursday night's Game 1 of the Finals between the Golden State Warriors and Cleveland Cavaliers.

Lowry, who recently announced that he has declined his 2017-18 player option with the Raptors, will become an unrestricted free agent July 1.

The Raptors were swept in the second round of the playoffs by the Cavaliers. Lowry missed the last two games with an ankle sprain. The year before, Cleveland eliminated Toronto in six games in the conference finals.