Former OHL players Mac Hollowell and Oskar Olausson made their NHL debuts Wednesday night. Hollowell played 12:26 with the Toronto Maple Leafs in a 2-1 win over New Jersey. The former Soo Greyhound also recorded one hit and one block. Over the course of five seasons in the OHL, Hollowell played 259 games with the Greyhounds, the fifth most in franchise history. His 183 points are the third most by a d-man while his 42 goals rank seventh. The Niagara Falls native was the 118th overall pick by Toronto in the 2018 NHL Draft. https://twitter.com/TorontoMarlies/status/1595571972251025410 Olausson played 7:02 with the…