At least 28-year-old played at Real Betis on loan in 2021-22 football season to win Spanish Cup
Spanish right-back Hector Bellerin returned to Real Betis on Tuesday.
"Real Betis Balompié have signed Héctor Bellerín. The player will wear the Green and White shirt, now as a Club player once his contract with Sporting de Portugal has ended," the Spanish La Liga club said in a statement.
Bellerin, 28, played at Real Betis on loan in the 2021-22 season to win a Spanish Cup.
He played for Barcelona's youth team before his move to England's Arsenal in 2011.
Bellerin then played for Arsenal's senior team in 2014-2021, and Barcelona for five months in the 2022-23 season.
The Spanish full-back last played for Portugal's Sporting.
Bellerin won three English FA Cups and three FA Community Shields with Arsenal.
As a Barcelona player, he helped them win the Spanish league title.