Tonsillitis could not come at a more inopportune time for Calum Chambers.
The Arsenal defender, who was expected to be leaned upon heavily in the extended absence of Mathieu Debuchy - out with an ankle injury - is not in the starting lineup for today's Champions League match against Borussia Dortmund.
#Arsenal team to play Dortmund: Szczesny, Bellerin, Koscielny, Mertesacker, Gibbs, Arteta, Wilshere, Ramsey, Alexis, Ozil, Welbeck #BORvAFC
— Arsenal FC (@Arsenal) September 16, 2014
As was rumored earlier in the day, 19-year-old Spaniard Hector Bellerin will make his Champions League debut in place of Chambers.
Quite a stage for the teenager.