We all know Sigurdsson hasn't reached his full potential here, because of injuries or otherwise, but this situation is a shambles. Here we have a 25 year old attacker, entering what's usually the best years in his career, who a few seasons back scored against Roma and Real Madrid in the Champions League. Players like that need to be given time and chances, because he has the potential to both propel the team AND be sold for a substantial fee, which can (at least partly) be reinvested in the team. Now instead we're shunting him out to make place for three journeymen, out of match fitness loanees.