Jaylen Brown of the Celtics loses his brand-new NBA championship ring during the procession before promising supporters a ‘big reward’ in exchange for their assistance

NBA champion Jaylen Brown, a top player for the Boston Celtics, has already misplaced his championship ring and is pleading with fans to help him find it in exchange for a gift.

Brown was voted Finals MVP after leading the Celtics to a series-clinching Game 5 win over the Mavericks on Monday.

However, as he disclosed to fans the next evening, the forward appears to have forgotten his ring during the team’s title parade on Friday, just a few days later.

Jaylen Brown is seen during the Boston Celtics' championship parade on Friday

In his Instagram story, the 27-year-old posted a photo of the jewels and offered a “big reward” to anyone who found it.

Before uploading an enlarged photo of the ring on his hand, it appeared that he had erased the narrative.Draw beautiful feather tattoos with significant meaning.

He then posted a story with the same sentiment, while featuring a closer-up look of the ringHe scribbled, “Reward for whoever finds this ring, lost at the parade,” with a happy face flipped upside down.

Brown was seen raising his fist in a parade shot from atop one of the floats, seeming to be without the ring on either hand.

Sam Hauser appeared exhausted while riding one of the floats in the Celtics’ rowdy Friday night parade in front of their home fans.

Joe Mazzulla, the Boston Celtics’ head coach, displayed passion when inspiring the Boston crowd.

Brown had a fantastic playoffs, averaging 23.9 points, 5.9 rebounds, and 1.2 steals per game.

Brown is now sweating over his championship ring after losing it during Friday's parade

He also shot 51.6 percent from the field in the playoffs, his career high.

If a fan can discover and return Brown’s rind, they can anticipate a good prize.

The Celtics star inked a five-year, $286 million contract extension with the team last year and will make just less than $50 million next season.