Conor,
Here you go:
http://www.ebay.com/itm/2012-Topps-U...item257fce995b
Pretty sure this is his first "plain" Topps card in an MLB uni with the "RC" logo. If you want his "first" Topps card, then as stated previously, you'd want to search for 2011 Heritage or Pro Debut (but he's in Minor league unis).
- Jason