Midway through the third period, Oliver Wahlstrom clipped Auston Matthews with a knee, which could've been much worse had Matthews not seen it at the last second. Matthews was able to get right back up, but Sandin immediately went after Wahlstrom to stand up for Matthews.
Sandin ate a couple of punches but landed the takedown in his first career fight. For his efforts, Sandin got a standing ovation from the Leafs faithful and shin taps from Mark Giordano and Auston Matthews.