Under Article 73 of UEFA's disciplinary regulations, children up to the age of 14 from schools and/or football academies can be invited to a match free of charge, provided they are accompanied by an adult.
England were semi-finalists at the 2018 World Cup in Russia and reached the final of the European Championship last year, where they lost to Italy.
The Poles used all five of their substitutes during the game and ended strongly, grabbing their equaliser in stoppage time.
The winger suffered a minor knock during a training session earlier this week and he was forced to miss his team’s 4-0 win over Hungary in Budapest.
Southgate has urged his players to play without fear when they take on Ukraine in the European Championship quarter-final on Saturday.
Southgate has praised Raheem Sterling’s “incredible resilience and hunger” after the Manchester City forward helped them reach the quarter-finals of Euro 2020.
Sterling, who kept his place alongside Harry Kane in a rejigged attack, settled fans' nerves with an early headed goal, which ultimately proved decisive.
England can join Italy, Belgium and the Netherlands in the last 16 of Euro 2020 on Friday if the Three Lions get the better of neighbours Scotland.
For the first time at a European Championship, England are off to a winning start as Southgate's bold selection paid off in a 1-0 win against Croatia on Sunday.
England's performance at the European Championship can help in uniting the country, manager Gareth Southgate said.
Alexander-Arnold limped off in the closing stages of England's 1-0 win after sustaining the injury while clearing the ball.
Southgate said some fans do not understand the message behind players taking a knee before matches.
Rashford says he was racially abused on social media following Manchester United's defeat in the Europa League final.
The 30-year-old could be out for much longer, casting doubt over his availability for the Euros which are scheduled to begin in June.
Captain Harry Kane and Raheem Sterling have been England's reliable source of goals since the World Cup.
More than half of all adults in England have had their first dose, with the vulnerable, key workers and elderly prioritised during the roll-out
Kane may not be too focused on individual records, but manager Gareth Southgate has backed the striker to surpass Wayne Rooney as their all-time top scorer.
Southgate said Grealish and Mount can play together for the national team on the evidence of their performances in Thursday’s 3-0 friendly win over Ireland.
Southgate said he could hand Borussia Dortmund teenager Jude Bellingham his first cap when they host Ireland on Thursday.
England will face Ireland in a friendly international at Wembley Stadium next month after New Zealand withdrew from the fixture.