My reference to Ozzy wasn't a negative one, just to clarify, if that's how it was viewed, but it wasn't regarding his size either. Both of them are very hardworking and versatile players that can fill in positions all over which was my comparison. I think Shackleton is a bit of a mix of Ozzy and Besic. Bit of a Yorkshire terrier in that midfield. I checked on the Millwall forum and although it's not a very active forum, the mentions of Shackleton I did see were positive ones and in his time there, he also covered RB and LB. A few were quite down about Millwall not signing him on a free, but apparently Shackleton's agent said no to them.