By John Cross Mikel Arteta has promised to get his telescope out – and get everyone to take a closer look at Arsenal ’s season. Arteta wants to rebuild confidence ahead of Sunday’s third round tie with Liverpool by reminding his players and the fans they are in rude health. Arsenal’s back-to-back defeats to West Ham and Fulham between Christmas and New Year has seen them drop to fourth in the Premier League and Liverpool will be formidable FA Cup opponents. But Arteta says the players are ready to respond at the Emirates by producing a performance to change the mood back to positivity. Gunne…