Alexa Grasso didn’t start her UFC career as a flyweight, but she may end up as one of the division’s best when it’s all said and done. The fast-rising contender recently improved to 3-0 competing at 125 pounds with a first-round submission win over veteran Joanne Wood at UFC Columbus. With the win, Grasso jumped up to the No. 9 spot in MMA Fighting’s Global Rankings and could be closing in on a shot at champion Valentina Shevchenko. Grasso’s current run is a far cry from her initial run at strawweight that saw her alternate wins and losses in six…