Rodrigo Cavalheiro  is a late bloomer, and he knows it. But if things go as planned for him on Friday, you’ll know exactly who he is. Cavalheiro didn’t get his MMA start until he was 25, and started training seriously at 27. Now 31, and riding a 10-fight winning streak, Cavalheiro will make his Bellator MMA debut on Friday in the promotion’s Season 10 lightweight tournament. To get there, he won four fights in 2012 and six in 2013 – with nine of the 10 wins coming by knockout. Cavalheiro (14-2 MMA, 0-0 BMMA) now will try to bestow the same fate on Marcin Held (16-3 MMA, 6-2 BMMA) at Bellator 113, which takes place at Kansas Star Arena in Mulvane, Kan.