Auston Matthews participated in his first practice with the Toronto Maple Leafs on Wednesday, and the No. 1 pick in the 2016 NHL Draft quickly left his mark at training camp.
Matthews showed off the strength of his slap shot by one-timing Mitch Marner's pass through a pane of glass behind the goal at MasterCard Centre.
Auston Matthews makes impact in Maple Leafs debut
Top pick in 2016 NHL Draft breaks glass with slap shot on first day at training camp
![092816MatthewsGlass](https://media.d3.nhle.com/image/private/t_ratio16_9-size20/f_auto/prd/bh3mfrbvi7niihsulxke.jpg)