World Cup warning with Sweden star Isak 'getting stronger and stronger' (opens in new tab)

Isak had a poor season by his standards after Liverpool paid Newcastle United a British-record £125 million last summer for him. He struggled for fitness and form, but showed some of his brilliant best as Sweden opened their World Cup with a 5-1 thrashing of Tunisia. The 26-year-old scored one goal and set two up, with strike partner Viktor Gyokeres of Arsenal also netting. Speaking on the eve of Saturday's tasty group clash with the Netherlands in Houston, the Englishman Potter said: "Alex h...