England manager Gareth Southgate admitted Marcus Rashford had given him a hard decision to make ahead of the World Cup with a stunning strike in a 2-0 friendly victory over Costa Rica on Thursday (June 7).
Marcus Rashford and Danny Welbeck scored in either half for the Three Lions, who will now prepare for their opening match in Russian Federation - against Tunisia on June 18.
The game seemed set to finish at 1-0 until Welbeck made the most of his first clear opportunity since coming on, stretching to nod in Alli's clever cross from the left for his 16th England goal, potentially giving Southgate more positive selection headaches ahead of the Tunisia clash in Volgograd.
Southgate called the goal "world class" but he was just as happy with the all-round play of the 20-year-old Manchester United forward.
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"We have got a good chance. He is still filling out - we sometimes forget how old he is", added Southgate.
The United academy player is expected to be a big player for England this summer with many supporters recognising his ability to spark his team to life. It means a lot to be involved but going to the World Cup and playing a major part in my main aim. Anything is possible and we have to go there with the highest expectations'.
Marcus Rashford opened the scoring with a tremendous long-range strike into the top corner, beating Keylor Navas in goal for Costa Rica.
Substitute Danny Welbeck stooped to head in a Dele Alli cross.
And given England's World Cup routes, whether winning or coming second in group G sees them likely to face either Brazil or Germany in the quarter-finals (should they get that far and both teams win their groups as expected) this will be something Southgate needs to work on in the final days before they travel to Russian Federation.
England's rhythm was then stunted by five quickfire substitutions, including a debut for Burnley's Nick Pope in goal.