Oztumer finally left Sunderland's League One rivals, Bolton Wanderers, on Thursday.
Bolton Wanderers midfielder Erhun Oztumer is reportedly on the radar of Sunderland and Charlton Athletic.
Championship side Nottingham Forest were reportedly keen on Walsall's Erhun Oztumer a year ago.
Leeds are expected to be very busy this summer after a disappointing 2017-18 campaign.
Leeds United need to add more quality to their squad in the summer transfer window.
Nottingham Forest were reportedly interested in Walsall favourite Erhun Oztumer in the summer window, and with good reason.
One Twitter account has linked Sheffield Wednesday with a move for the Walsall attacking midfielder.
HITC Sport understands Blackburn and Bury are tracking the Walsall ace.
Linked with Bristol City, Nottingham Forest and Sheffield United, Bolton Wanderers may have received a huge leg-up in their chase for Erhun Oztumer.
Bolton Wanderers could do with a new creative king after Zach Clough departed for Nottingham Forest - and Walsall's Erhun Oztumer fits the bill.
Tottenham Hotspur are four points behind the Champions League places.
Liverpool and Manchester City are both keen to snap up Ruben Dias in the summer transfer window.
Jose Mourinho is reportedly looking to upgrade Tottenham Hotspur's defence in the summer transfer window.
Premier League Arsenal reportedly want to sign Celtic's Scottish Premiership talisman Odsonne Edouard; is he going to follow Kieran Tierney to the Emirates?
The 27-year-old is available for Ibrox side Glasgow Rangers tomorrow night.
Liverpool boss Jurgen Klopp may have to break the club's record transfer fee to bring in Kai Havertz from Bayer Leverkusen.
Tottenham Hotspur are reportedly interested in Philippe Coutinho.
Sean Dyche's Burnley could maybe do with a new goal-scorer at Turf Moor with Watford's Andre Gray potentially set for a Premier League switch.
Liverpool defender Dejan Lovren appears to be fourth choice central defender for Jurgen Klopp's side.
Le Havre could have created another midfield superstar in Pape Gueye with Premier League Arsenal reportedly battling AC Milan and Sevilla for the midfielder.