Not a great one but may be worth exploring if you have just got a 100% deposit email in last couple of days as could add some excitement.
Champions League Final Special at Betway.com - Higher Football Odds, Better Value winnings, trader tip and DOUBLE winnings!

Manchester united – Barcelona: Injury Time Double Winnings!

Champions League finals are never over until the fat lady sings and everything can change within a few minutes, so to celebrate the Champions League final and the sheer determination of both teams we are giving you the opportunity to DOUBLE YOUR WINNINGS!

If a goal is scored in the second-half injury time during this epic clash Betway.com will DOUBLE your winnings on all winning correct score bet.

Place your bet right here

Rules:

1. A goal during the Manchester United v Barcelona match, must be scored during second half injury time
2. Refunds will come in a freebet token equal to the value of the winning bet
3. Refund will be done within 48 hours after the game has been played
4. Only valid on pre-game, winning single bets
5. Maximum €100 (EUR) bet will be matched
6. Only bets from the correct score market will be matched
Am thinking that maybe if your score is still possible as it goes in to 2nd half injury time you could always put a few quid on the current score (i.e. you back 2-1 and score is 1-1) so that you make little extra. Or you could just let it lie and cross fingers!!!