Professional football seems to become too much for players these days normally between the ages of 35 and 38 but there is the rare, odd exception of an outfield player reaching 40. Cristiano Ronaldo of course, reminded all what he is capable of with his 900th career goal this week for Portugal. He continues to impress albeit in the Saudi Pro League, where quality is rapidly increasing. But most players get to the age of 35 and look for one last pay cheque. Liam Cooper turned 33 in the summer and the former Leeds captain has finally found a club. Cooper is set to join CSKA Sofia today. Signing …