straight to your inboxGuardiola urges City to keep focus amid injury woesManchester City boss Pep Guardiola admits he does not know when his side will return to top form after a challenging few weeks on the injury front. City beat Arsenal 1-0 on Saturday but Guardiola has injury concerns ahead of Wednesday’s Champions League opener against Porto with Kevin De Bruyne, Aleks Zinchenko, Gabriel Jesus, Aymeric Laporte and Benjamin Mendy all missing the win over the Gunners.