You might have noticed that many great footballers tend to settle for unpopular leagues when their football career is almost going to an end. With time, every good football will get to a certain age when their fitness level and agility dwindles. This is the time their worth depletes, therefore, they end up settling for unpopular leagues when they become liability to their current clubs
Most top leagues (EPL) normally go through vigorous training, strict nutritionist and a solid match every week and this can be an uphill task for a player who is already approaching retirement age
Apart form the aforementioned, no club is really interested in buying players who is already above age 30-33 but reverse is the case for unpopular leagues. Most of these like always throw mouth-watering offers to those old players which sometimes doubles or tipples there current clubs salaries
We have the likes of Ramires, Diddier Drogba, Anelka, Hulk, John Mikel Obi, Oscar, Lavezzi Mascherano who are currently in Chinese Super League
Chinese league is know to be retirement league for most players