Christiansen has only previously managed in Cyprus.
Keane was touted to return to his former club after impressing for Burnley last season.
Ricardo has a release clause of £22m in his Porto contract.
The 2017 Confederations Cup will be hosted by Russia.
The Reds have had offer of £3m for the England Under-20 World Cup winner rejected.
Former Middlesbrough manager says Morata would be a "spectacular player" in the Premier League.
Finding a replacement for Claude Puel is the immediate priority for Saints.
Lemar has scored 14 goals and assisted 14 for Monaco.
Reports suggests that the deal with Fluminense worth is €6m.
Will Mike Ashley deliver on his promise to back the Toon boss in the transfer window?
Red Devils set to strengthen considerably to balance renewed title bid with Champions League return.
Inter manager Ivan Perisic refused to discuss reports linking Perisic to United.
Lacazette scored 28 goals in the league last season.
Lindelof, 22, completed a £31m move from Benfica to United on 14 June.
Salah scored 19 goals and assisted 15 to help Roma to second place in the Serie A last season.
Morata scored 15 goals in 26 La Liga appearances for Real Madrid last season.
Sanchez, 28, only has a year left on his Gunners contract.
Lindelof signed a four-year deal at United with an option to extend it by a year.
Puel led Southampton to the finals of the League Cup.
Pep Guardiola has already signed Bernardo Silva and Ederson, with several older players departing.
United are believed to be edging closer to signing Morata.
28-year-old came close to signing for the Toffees on deadline day in 2012.
Bundesliga giants have paid around £36.5m to secure the services of the 22-year-old midfielder.
Giallorossi sporting director Monchi insists the price for Salah will be "set by Roma, not the buyers".
Spaniard adds that Everton winger Gerard Deulofeu is yet to decide his future.
Salah is believed to have informed Roma of his desire to move to Anfield.
Director of football Steve Walsh has travelled to Milan as the club's recruitment drive ramps up.
Liverpool publicly apologised to Southampton over their recent pursuit of Van Dijk.
Insigne, 26, is adored by those in Naples.
Reports suggest that Serbian international could become the latest player to swap St Mary's for Anfield.