This one isn't foolproof, but it goes a long way toward shutting Lionel Messi down. Chelsea came out on top, but for a few inches on several occasions they would have been sent packing.
Yes, the famous tactic we speak of is parking the bus.
Across two legs in last year's UEFA Champions League final, the Blues rarely left their half and dumped eight players on their own 18-yard line to clog up the play.
Pep Guardiola tried everything to coax them out of their shell, from throwing on Isaac Cuenca to give his side more width to shooting at will from any unspeakable angle, but alas he did not succeed.
This is a rather extreme version of what Real Betis did when they dropped Jose Canas and Benat unspeakably deep to narrow the play and block the channels, while Real Madrid have gotten the better of La Blaugrana at times by trusting holding pivot Sami Khedira and Xabi Alonso to marshal the space in between themselves and their defensive line.
The problem? One slip, one missed angle, one mistake, and it's over.