In his last nine games, Tomoya Mori, the Seibu Lions' 19-year old sensation, has 14 hits (and at least one in nine straight contests), four home runs and has driven in seven runs. For the young season, he's hitting .325 with seven home runs and 20 RBIs.
That type of production makes it worth repeating that Mori is still a teenager, and will be for the majority of the season. He doesn't turn 20 until Aug. 8. As an 18-year old going on 19 last season, Mori hit .275 with six homers and 15 RBIs in 41 games.
Being this good this fast is to be on a trajectory that recently is most easily compared to Bryce Harper, the Washington Nationals phenom who similarly burst on the scene in 2012 as a 19-year-old in the majors and hit .270 with 22 homers and 59 RBIs his rookie year.