With their pre-season schedule finished, the Toronto Maple Leafs' opening-night roster is coming into focus.

Training-camp surprise Brandon Kozun not only appears to have won a roster spot, he could be the second-line centre when the Leafs host the Montreal Canadiens on Wednesday night. Kozun skated on a line with Joffrey Lupul and Nazem Kadri at practice on Saturday.

Injuries cloud the rest of the picture. Centre Tyler Bozak (lower-body injury), winger Josh Leivo (foot/leg) and defenceman Cody Franson all missed practice and it's uncertain if they'll be ready to face the Habs.

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Star Phil Kessel, who missed Friday night's pre-season finale with a lower-body injury, also left the ice about 15 minutes in.

Franson's injury might force the Leafs to carry eight defencemen, which would mean spots for left-handed shot Stuart Percy and right-handed shot Korbinian Holzer.

At forward, Leivo's injury, suffered when he blocked a shot from Detroit Red Wings defenceman Brendan Smith on Friday night, could open the door for Matt Frattin, whose camp Randy Carlyle has described as "mediocre."

Bozak missed the start of camp with a lower-body injury and didn't practise Saturday. Mike Santorelli filled his spot on the first line.

With the roster deadline of 5 p.m. Tuesday looming, enforcers Colton Orr and Frazer McLaren and winger Carter Ashton find themselves on the bubble. Rookie William Nylander is still around for now but could be sent back to Sweden or to the AHL's Toronto Marlies.