This line seems too high. It is currently 1.787 on Pinnacle, but expecting it to close even more towards closing time. This bet seems to be dropping across the whole market - bet365 are currently at 1.67 for instance. The importance of this game itself could result on a feisty matchup, and the referee is decent too. In his last ten games, he gave 4+ cards in 7/10 of these.
