New Delhi, July 24 -- Alexander Isak, Newcastle United's star striker, has sent shockwaves through the Premier League by informing the club he wishes to explore his options this transfer window, according to reports.

The 25-year-old Swedish international's decision has sparked interest from top clubs like Liverpool, while Newcastle remain steadfast in their £150 million valuation.

Alexander Isak has not requested a transfer officially, but his openness to new opportunities has Newcastle on alert, according to Sky Sports. Contract extension talks have stalled, though his current deal lasts three more years, giving Newcastle a strong negotiating stance. The club insists he is not for sale. Last season, Isak scored 27 goals in 42 appe...