Roglic's swarms made up of Lipowitz, Martinez and Vlasov should try to split the GC group midway of the climb. I'm sure the Spanish group of Rodriguez, Mas and Landa with Skjelmose and some remnants of UAE team would also come out of their attacking mode to help weaken the Red Jersey and his team not only in this stage, but to the more demanding stages 14, 15 and 16.