Crystal Palace teenager Luke Plange is wanted on loan by Coventry.
Plange, 19, was loaned back to Wayne Rooney's Derby after signing for Palace in January — and the striker could be on his way back to the Midlands.
Coventry boss Mark Robins has made an inquiry for Plange — and may need him as Swedish striker Viktor Gyorekes, could be sold to Fulham or Championship rivals Middlesbrough.
Vieira is keen for Plange to play and develop following his breakthrough season at Pride Park.