I noticed that today is Mariano Rivera's birthday and that got me thinking about three things:
1 - Who is the greatest MLB closer of all time?
2 - Will M. Rivera make a return to the bigs?
3 - Is there anything else he can do to drive more demand for his cards?
1 - Who is the greatest MLB closer of all time?
2 - Will M. Rivera make a return to the bigs?
3 - Is there anything else he can do to drive more demand for his cards?
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