I think the most likely number of slams for Federer the great is either 28 or 20. I will explain why. He will want 28 slams perhaps because it would mean-10 Wimbledons, not just breaking the record but the first to do double digits which he knows he would always be the first to do even if somebody breaks his record in the future he will always be the first guy to double digits then. 8 U.S Opens, not just breaking the open era record but all time including pre-open era. 7 Australian Opens, not just breaking the open era record but all time including pre-open era. 3 French Opens, enough to be an all time great on clay, not just a great player on clay as if you win 3 times at the French it makes you one of the all time greats on clay. Or he will be satisfied with this following and not have the extra motivation to reach those heights. 8 Wimbledons, breaking the record of Sampras at 7 but not pushing for the first to be double digits. 6 U.S Opens, breaking open era record of 5 but not pre-open era record of 7. 5 Austalian Opens, breaking open era record of 4 but not pre-open era record of 6. 1 French Open, enough to compelete career slam and maybe calender slam, but not enough to be all time great on clay, just a great player on clay. I am going to try to make this into a poll. I am not sure if it will go through but if it went through right then you can vote. I am not quite sure how to make the polls here.