The Golden State Warriors offered Harrison Barnes a $64 million contract extension, which was rejected by the rising forward, according to a report.

Yahoo Sports reported that Barnes rejected the offer but the Warriors want to lock down Barnes to a long-term contract before he potentially becomes a restricted free agent (RFA) next year. The Warriors and Barnes still have until Oct. 31 to discuss the probable contract extension allowed for players who are on their rookie scale contracts.

If the Warriors and Barnes don’t agree to a deal by end of October, Barnes will hit free agency but Golden State can match any offer from other NBA squad due to his RFA status.

For 2015-2016, Barnes is set to receive over $3.8 million for the season but is due for a big pay day as he has proven to be one of the most efficient players in the NBA and also one of the most durable players in the Warriors’ roster.

Barnes, who has missed just four regular season games in the last three years, averaged career-highs of 10.1 points and 5.5 rebounds as a starter for Golden State. He had similar numbers in 21 postseason games (10.6 points and 5.2 rebounds per game) on the way to the NBA title beating LeBron James and the Cleveland Cavaliers in the championship round.

At $16 million per season, the reported value of the Warriors' initial offer, Barnes would have been one of the highest paid players in the team for the 2016-2017 season. Currently, Klay Thompson will have the highest salary owed for that season at $16.63 million with Draymond Green ($15.3 million) and Andrew Bogut ($12.68million) placed second and third, respectively.