Nigerian football star, striker Isaac Promise, has died after collapsing during a workout in his apartment complex gym. He was only 31.

His death was announced by his football club Austin Bold, with the president of the club, Bobby Epstein, sharing these words: "It's with shock and grief that we acknowledge the sudden death of Promise Isaac. The greatest loss a team can suffer is not on the scoreboard, it's the death of a fellow teammate. On behalf of the BOLD organisation; we wish his wife, children and family strength and peace as they struggle to cope with his death." There has been no cause of death stated.

Promise had led an impressive career, despite his youth. He was captain of the Nigeria team that took home silver in the 2008 Beijing Olympics. Promise had been playing professionally for 14 seasons–nearly half his young life– and scoring a total of 77 goals over his career.

Born in Zaria, Nigeria, Promise went professional in 2005 by signing a three-year deal with the Genclerbirligi club in the Turkish Turkcell Super League. He then played for other many other Turkish league teams for the next 12 years. His career is documented by the Nigerian Player's Database and show him lending his talents to these teams: Trabzonspor (2008-2010), Manisaspor (2010-2014), Antalyaspor (2012-2014), Al Ahli (2014-2015), Balıkesirspor (2015), Karabükspor (2015-2017) and a short loan with Giresunspor in 2017. Promise then transitioned to the United States Soccer League with the Georgia Revolution. He was most recently with the Austin Bold, where he began playing this year.

Tributes to the late Flying Eagle are pouring in across social media from teammates, former teams and fans.