Only a handful of the senior players that left Leeds United on loan using the relegation loan clause have actually impressed this season – but none more so than Robin Koch at Frankfurt, in Germany. Brenden Aaronson only recently opened his account for Union, but has flopped this season. Marc Roca started well at Betis, but has dropped out of the side in recent weeks. Luis Sinisterra, a bit hit and miss. Max Wober has been consistent, while Diego Llorente has been a regular for Roma and even opened his account last time out – certainly, he’s doing a lot better than Rasmus Kristensen under Danie…