You dont need to.I'll double check if I can find my old combine results and report back.
http://www.afl.com.au/news/2014-11-06/meet-connor-blakely
From that:
'Blakely doesn't have the breakaway pace that other midfielders possess, and he runs a 3.19 second 20-metre sprint. His kicking is fine without being a huge strength, but he gets around that by knowing where to go and where to be to get the footy in his hands.'
I was wrong it was 3.19 rather than 3.15 for the 20 metre sprint. I read somewhere that there might of been mistakes with the 20metre sprint testing that year. Connor is not slow so that would make sense.