Plymouth Argyle have equalled the club's record transfer fee to sign Norwich City wing-back Bali Mumba.
He has agreed a four-year deal, with the Pilgrims set to pay more than £1m.
The 21-year-old spent last season on loan at the Pilgrims and was an integral part of the side that won the League One title and reached the EFL Trophy final at Wembley.
The ex-England youth player scored six goals in 47 appearances and made the EFL League One team of the season.
The fee is similar to the one Argyle paid on Monday to sign forward Morgan Whittaker, who also impressed on loan at Home Park last season.