Sarr is among senior players to be made available by OM as they seek to balance their books this summer.
The right-sided wing-back has been linked with Newcastle, with a deal dependent on whether on-loan Inter Milan midfielder Valentino Lazaro signs permanently.
Bruce said over the weekend: "Our work never stops.
“We will have meetings throughout the summer to settle the future of the players on loan. We will see what the demands will be, but I don't think this is an issue that can be resolved in a week."