Alexander Isak was involved in a heated altercation just minutes after making his first appearance of the season.

The £125million Liverpool signing endured a nightmare return to competitive action, as he was unable to prevent Sweden from falling to a shock defeat to Kosovo in World Cup qualifying.

Isak had not played prior to the clash, after effectively going on strike at Newcastle before securing his British record transfer on deadline day.

The 25-year-old was a late substitute for his national team, as he was introduced in the 72nd-minute to try and rescue a result.

Sweden found themselves two down at half time after goals from Elvis Rexhbecaj and Vedat Muriqi put Kosovo in control.

After replacing Nottingham Forest 's Anthony Elanga, Isak partnered Arsenal new b

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