GAME NOTES: Montreal has been the biggest early season surprise in the CFL. With an aging core and a rookie head coach with no previous Canadian football experience, not much was expected from the Alouettes this season. But under the leadership of veteran quarterback Anthony Calvillo and a sound offensive game plan from head coach Marc Trestman, the Alouettes find themselves undefeated and sitting on top in the East Division. Calvillo finished 34-of-44 passing for 372 yards and four touchdown passes to lead Montreal to a 38-24 home victory over Winnipeg last week. Calvillo is second in the CFL in passing yards with 665, but leads the league in TD tosses with six and is also first in pass attempts (81) and completions (59). Those numbers mark an impressive return for Calvillo, who left the Alouettes late last season when his wife was diagnosed with a form of cancer. Thankfully, Calvillo's wife is responding positively to treatment and was in the stands for the win against Winnipeg. Running back Avon Cobourne was an important cog in Montreal's offense, registering 10 catches for 96 yards while rushing for 89 yards on 17 carries and scoring a touchdown. Calvillo also contributed to the Alouettes' rushing attack, running three times for 57 yards. Montreal took control of the game early, storming out to a 31-7 halftime lead. Winnipeg scored two touchdowns in the third quarter to close the gap somewhat, but could only manage a field goal in the final frame. Calgary was 43 seconds away from earning its second straight win last week. But Jason Tucker's acrobatic one-handed TD grab at 14:17 of the fourth lifted Edmonton to a thrilling 34-31 win over the Stampeders. Henry Burris finished 23-of-35 passing for 334 yards and three touchdowns but also had two interceptions. Brock Ralph had two crucial catches late in the game for 92 yards, including a touchdown. However, Edmonton rolled up 474 total yards against the Stampeders' defense, including 448 yards passing by Eskimos quarterback Ricky Ray. And Calgary had three turnovers while just forcing one. The numbers: Montreal is 1-0 at home this year, but this marks its first game against a West Division rival. Calgary is 0-1 on the road and faces its first East Division team this season. Keys to the game: Montreal's offense is a big reason why the club is 2-0. The Alouettes lead the CFL in scoring (71 points) and more importantly in ball control (more than 37 minutes per game). It's awful tough for an opponent to score when it doesn't have the ball. After a solid showing to open the season versus B.C., the Stampeders defense had its problems against Edmonton. Calgary is ranked last in the CFL in pass defense (over 350 yards per game). But the unit is ranked second in fewest yards rushing allowed (58 per game), an important factor considering Montreal features the league's second-best running attack, averaging 174 yards per game. The contest also features the return of Calgary defensive coordinator Chris Jones, who held a similar position last year with Montreal. But Calgary counters with a pretty good offense of its own. The Stampeders rank second only to Montreal in yards gained (425 per game) and are third overall in rushing (137 yards per game). Burris is also one of the CFL's best and has the added dimension of being able to control a game with his feet. That takes some of the pressure off running back Joffrey Reynolds as well. Both quarterbacks have also had decent protection thus far. Calgary has given up a CFL-low two sacks thus far while Montreal is tied for fourth (four sacks). This has all the signs of being an offensive game, which is exciting for fans but a nightmare for defensive coaches.