4 games in 7 months; Seldom-seen star may wish he'd joined Celtic now Celtic Danny Owen Arsenal Report: Real Madrid join Mikel Arteta in race to sign striker who Celtic could have signed for £6m Celtic Opinion: Celtic target is a big talent but Hoops would be mad to spend record £10m fee Celtic Opinion: £5m man turned down Celtic in January and he might regret that now Celtic £20m striker and 5 players Celtic can sign after Champions League qualification