Celtic are being linked with a move for Wagner, who left Huddersfield Town in January.
Huddersfield in talks about signing Terence Kongolo from Monaco for a fee between £13.1m and £17.5m.
Terence Kongolo has bid farewell to Huddersfield and returned to Monaco after his loan spell.
Terence Kongolo was by far Huddersfield Town's most impressive performer in their 3-0 defeat to Liverpool at the John Smith's Stadium.
Huddersfield are on the verge of signing Terence Kongolo from Monaco but should West Ham have been in the chase?
Monaco could let Terence Kongolo leave after a difficult start in Ligue 1 - Huddersfield Town are keen while 2016 suitors West Brom need reinforcements.
Everton are reportedly keen on the Feyenoord defender.
Everton and Manchester City are said to be interested in the signing of Dutch international defender Terence Kongolo.
The Feyenoord defender may be an alternative for Tony Pulis after transfer frustrations at fullback.
Feyenoord and Netherlands defender Terence Kongolo as caught the attention of three Premier League clubs
Liverpool seem to be on the verge of achieving something very special.
Liverpool defender Virgil van Dijk was in action for the Netherlands against England on Thursday.
Leeds United are said to be interested in snapping up Helder Costa on loan from Wolverhampton Wanderers.
Axel Tuanzebe had a brilliant season at Aston Villa, on a loan spell from Manchester United.
Reported Leeds United January transfer target Daniel James is leaving Swansea City for Manchester United.
Tottenham Hotspur have been linked with Lyon ace Tanguy Ndombele.
Tottenham star praises Dutch duo.
Liverpool midfielder Adam Lallana wants to stay put.
Tottenham Hotspur defender Juan Foyth and Giovani Lo Celso, who is linked with a move to White Hart Lane, have been in Argentina training together.
Tottenham Hotspur have already been linked with Lyon's Nabil Fekir this summer.
Southampton boss Ronald Koeman is reportedly interested in Feyenoord trio Sven van Beek, Terence Kongolo and Tonny Vilhena.
Manchester City believe they have the upper hand over Manchester United in the pursuit for Feyenoord's Terence Kongolo.