Lay NEXT GOAL of favourite 80-85th minute, but back that same team to win at higher price in the MATCH ODDS market.
Normal win - If the score stays the way it is. The way you win big - if longshot scores NEXT GOAL and favourite score two before FT to win. The way you lose big - if favourite scores NEXT GOAL but longshot equalize and either draw or win at FT.
One I have already thought of is, if the favourite were to score their MATCH ODDS may be higher than the 3.5% arb value.