The Stamford Bridge club take on Tottenham in the Premier League, as they look to finish in a European position.
Per The Mail, a banner will carry the message 'Chelsea since birth' above an image of Gallagher.
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The banner is similar to ones that have been put out for Thiago Silva, Reece James and Thomas Tuchel in recent years.
Gallagher is only 24, but he is seen as a key member of the squad by the fans.
However, the club may look to cash in on him in the summer, given he is a homegrown player.