Miroslav Klose's controversial winning goal in the first leg of the tie may prove to be crucial.

Canadian sports betting fans will be looking forward to another round of Champions League football this week.

Bayern Munich are clear favorites to go through to the next round of the competition when they travel to Fiorentina for the second leg of their tie tomorrow night.

The Germans lead the tie 2-1 after a controversial late goal from Miroslav Klose, which television replays confirmed should have been disallowed as the striker was in an offside position.

However, the game still hangs in the balance and the goal scored by the Italians may prove to be useful.

If Fiorentina are to win the match 1-0, they would go through to the next round instead of Bayern Munich.

Should the match be poised at 2-1 to the home team after 90 minutes of football, extra-time will be played to try and split the sides.

If no goals come in that period, a penalty shoot-out will decide which team is to go through to the next phase of the competition.

The other game to be played on Tuesday night is also finely balanced.

Porto triumphed 2-1 over Arsenal at home in the first leg of their match, but the English team will be confident of overturning that deficit on their own ground and are narrow favorites with the bookies to go through.