Arsenal and Chelsea have reportedly been presented with a potential stumbling block in their efforts to sign Newcastle United striker Alexander Isak.
The Sweden international has established himself as a key player for Eddie Howe's side since he completed a move from Real Sociedad in the summer of 2022.
Isak has made 79 competitive appearances during his time with the Magpies, scoring 40 goals and providing seven assists.
The 25-year-old has netted four of those goals across his 10 Premier League appearances this season, although he was unable to find the net in Monday's 2-0 defeat against West Ham United.
While he may be one of Newcastle's most prized assets, Isak continues to be linked with a potential move away from St James' Park.
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Arsenal, Chelsea dealt blow in Isak pursuit
London rivals Arsenal and Chelsea have both emerged as potential suitors, but the pair may have to see off a challenge from Barcelona if they are to secure Isak's services.
According to The Sun, the Catalan giants have made Isak their 'number one' target for next summer's transfer window, presenting a sizeable obstacle to Arsenal and Chelsea's hopes of signing the Swedish forward.
The report claims that Hansi Flick's side are preparing to launch a 'mega-money bid' to prise Isak away from the North East ahead of the 2025-26 season.
There is a belief that Barcelona have turned their attention to Isak after learning that their other target, Viktor Gyokeres, would prefer a move to the Premier League.
While Barcelona may be showing a keen interest, it is currently unclear whether they would be able to meet Newcastle's asking price due to their well-documented financial issues.
The Magpies are likely to demand around £115m to consider parting ways with a player who is under contract until the summer of 2028.
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Why do Barcelona want to sign Isak?
On the face of it, Barcelona are not in desperate need of a new striker, with Robert Lewandowski continuing to perform at a high level.
The Poland international has been in impressive form this season, racking up 20 goals in 18 matches in all competitions.
However, the 36-year-old is not getting any younger, leaving Barcelona searching for a potential successor to their star striker.
The Catalan giants are also aware of the fact that they have little cover behind Lewandowski, which would present them with a problem if the veteran forward were to pick up an injury.
While they may decide to make do until the end of the season, Barcelona seemingly feel it is a position that needs strengthening ahead of next season.