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 let the young midfielder join Fulham this summer.
Scott Brown is one of Celtic's most decorated players of all time.
Tottenham Hotspur defender Davinson Sanchez has been called up to Colombia's squad.
Tottenham Hotspur are due to take Arsenal on Sunday, but Mauricio Pochettino is reportedly set to name a team without a recognised right-back.
Will Christian Eriksen still be a Tottenham Hotspur player by the time the European transfer window slams shut next month?
Tottenham Hotspur and Arsenal will clash in the Premier League on Sunday afternoon, with both teams suffering defeats over the weekend.
Celtic are reportedly moving for Red Bull Salzburg's Gideon Mensah.
Ibrox side Glasgow Rangers are potentially 90 minutes away from the Europa League proper.
Norway right-back Omar Elabdellaoui has been linked with Scottish Premiership champions Celtic after impressing for Olympiakos in Greece.
West Ham United forward Javier Hernandez could miss out on playing this evening.