It was quite the weekend for last season's Calder Trophy winner.  Mathew Barzal entered Friday's game against the Senators with five goals on the season, and he matched that in two games.  Barzal scored two goals and an assist against the Senators before scoring a hat trick against the Maple Leafs on Saturday.  That brings Barzal up to 10+25 in 37 games with solid PIM and an improved shot rate.  He's still only 21 years old so clearly the best is to come.  For the rest of this season, I think he's just inside the top 50 now that his shot rate isn't far from average.  If he can eventually get that up towards three a game, it's game over.  Barzal has top 20 player upside down the line; hopefully the Isles get some more talent around him.  Let's take a look at what else happened over the weekend: