Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: Sergio Aguero may be stuck on the sidelines nursing an injury but it doesn't seem to have affected his mood as the Argentine beamed for the cameras while he signed Manchester City shirts for fans. The 27-year-old, who has not featured for the Premier League leaders since sticking five past Newcastle at the start of October, was putting his signature on No 16 replica tops bought by supporters before Aguero changed his number at the start of the season. The former Atletico Madrid forward was due to wear No 16 again this season before the club loaned striker Edin Dzeko to Roma in August and Aguero opted to take No 10, previously worn by the Bosnian.Sergio Aguero was No 16 for Manchester City but switched in AugustAfter Edin Dzeko moved to Roma, Aguero decided to become No 10He offered to sign fans' shirts that were bought with No 16 on the backAguero followed through on promise and signed replica tops on Tuesday 
 Question:The club invited the first 125 supporters who purchased the official _ 2016 calendar to the store to meet the players and pose for pictures.

Manchester City