He has won all he can with Chile. Missing the world cup probably means the end to that dream. Any player out there would choose to come to City now rather than wait until thr summer. We are in all 4 major competitions with the league in our hands, a league cup semi that is favourable, a CL knockout fixture we should win and an FA Cup 4th round game we should win.
Or stay at Arsenal, make more money in the summer and miss out on the chance to contribute towards a side that could win more than one trophy this season. He has a potential cup final in Feb, CL football and could win the league. That league medal in his cabinet is worth more than 30m in his bank.