Because, why the blooming heck would he?! The last (and only) time he played for them was two seasons ago in 2009/10, and he did not follow this up with an appearance in the Champions League 2010 either! So why would he suddenly pop up now and play for them in the CL, after getting replaced by Adil Rashid in the last Big Bash?
Redbacks squad for the CL: Cameron Borgas, Daniel Christian, Tom Cooper, Callum Ferguson, Daniel Harris, Michael Klinger, Nathan Lyon, Tim Ludeman, Aaron O'Brien, Gary Putland, Adil Rashid, Kane Richardson, Chadd Sayers, James Smith, Shaun Tait
Hope this helps,
That pic would actually make for a great blog logo :D