During his pre-match press conference on Thursday, Arteta was asked about the condition of Guimaraes following his substitution at the weekend. The manager initially remained coy, stating: "Let's see how he is. He's evolving really well, but let's see for tomorrow."
However, during a pre-match interview with Sky Sports, Arteta explained exactly why the Brazil international was left out. The Spaniard said: "He had a slight tension in his groin, he hasn't done a pre-season. He had only four or five days before that game (Community Shield). It is a lot of new stuff for him as well, and we need to take it bit-by-bit." Consequently, the extended layoff means the midfielder is set to miss the Coventry clash tonight, alongside upcoming domestic tests against Aston Villa, Chelsea and possibly Sunderland.