Jurgen Klopp's side will take on the defending champions on 18 May.
The German press have claimed Louis van Gaal's side are interested.
Fletcher has scored seven times since joining the Tykes on loan.
Dyke claims that the two parties are "a long way down the path" to reaching an agreement.
Van Gaal claims he could rotate his squad after midfielder is handed a three-match ban for violent conduct.
The Reds trail by a single goal after defeat in Spain last week.
Belgium international will be ready to return to action for the FA Cup final.
Sam Allardyce's side are 18th and one point adrift of safety with three matches left to play this season.
The 23-year-old winger will not be risked against Stoke City this weekend due to a slight muscle tear.
The 23-year-old star is a reported target of the Premier League club after impressing in Italy.
Leicester were crowned champions after Chelsea drew 2-2 with Tottenham Hotspur on 2 May.
A tablet discovered in an ancient shrine describes the rules of horse racing at the time.
The Barcelona duo have been linked with a big-money move to China in recent months.
The experienced hooker has returned to training and looks set to face Gloucester after seven weeks out.
Trump has pledged that, if elected, he would build a wall to keep Mexicans from crossing the US border illegally.
Belgium international has not played since being stretchered off during the 4-0 drubbing of Everton in April.
Alex Iwobi has made 20 appearances in all competitions after breaking into the first-team in second-half of the season.
The 29-year-old fighter has conceded he will have to box his way to victory in Las Vegas.
Jon Toral has made 38 appearances in all competitions for on-loan club Birmingham City scoring eight goals.
Argentine forward has scored 32 goals in 33 league games for Napoli this season.
The 26-year-old striker has found himself on the periphery of the team in recent weeks.
Chelsea star says Pato is likely to stay at Stamford Bridge.
Barcelona goalie has put an end to the speculation linking him with a summer move away.
Toffees will be without Gerard Deulofeu for the remainder of the campaign, according to Roberto Martinez.
The 18-year-old star is a reported transfer target of the Red Devils after impressing this season.
Real Madrid reached their 14th European Cup final, ending Manchester City's hopes of a maiden title.
Lancashire club's second promotion in three years is a tale of triumphing in the face of tight budgets.
Danny Ings has returned to training after spending over six months out with a cruciate ligament injury.
Mourinho, 53, reportedly keen to take over from Louis van Gaal this summer.
Everton's under-fire manager says the Foxes' achievement is unlikely to be repeated any time soon.