Need help identifying these Saracens player's signatures

[brettgarten]

Any help would be appreciated.

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[smartcooky]

I'm guessing these were signed around 2006

Top image

► above and to the right of the Saracens logo is Glen Jackson (2004-2010)



Bottom image

► above and to the right of the Premier Rugby logo is Tom Mercey (2005-2010)
► upside down to the left of the "P" in Premier Rugby is Cobus Visagie (2003-2007)