1. 2013 Topps UFC Bloodlines #139 on eBay
Topps, base rookie card, Shows his UFC debut against Marcus Brimage; read via WebSearch summaries (Ripped 403, Cardboard Connection DNS failure).
Conor McGregor's key rookie card is the 2013 Topps UFC Bloodlines #139. Conor McGregor's rookie season was 2013. Made his UFC debut in April 2013 with a first-round knockout of Marcus Brimage. The checklist below lists one rookie card by card number, each row from a cited source.

Rookie year 2013
Photo: U.S. Secretary of Defense, Public domainKey rookie card
2013 Topps UFC Bloodlines #139
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Topps, base rookie card, Shows his UFC debut against Marcus Brimage; read via WebSearch summaries (Ripped 403, Cardboard Connection DNS failure).
Topps, base.
Sources [1]
Panini, chromium.
Sources [1]
Panini, chromium.
Topps, chromium, Current Topps Chrome UFC base card; the checklist line carries no RC marker.
McGregor debuted in the UFC in April 2013, during Topps' first UFC license run (2009-2020). His rookie card is 2013 Topps UFC Bloodlines #139, which Topps' Ripped guide lists as his RC; 2014 Topps UFC Champions #32 is not a rookie card. Topps took the UFC license back in 2024 and is the exclusive UFC card maker again; its current release is 2026 Topps Chrome UFC.
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Career facts: [1]
1 rookie card and 4 other cards with card numbers, each from the checklist linked on its row. A row marked "one source" is printed by one checklist site only. Parallels are counted, not listed.
A PSA 10 (Gem Mint) or BGS 9.5 is the top grade most collectors look for: sharp corners, clean edges, centered printing and an unmarked surface. A graded card and a raw one are different cards to look up. How the four graders compare and what grading costs.
PSA
One overall grade on the label. Centering weighs heavily in it.
CGC
Authentic (AU) for a genuine card that cannot take a number; Authentic Altered (AA) for one that was altered.
Source: CGC grading scale
Beckett (BGS)
Four subgrades on the label: centering, corners, edges and surface.
Source: Beckett grading
Grading scales as each grader describes them, checked Oct 16, 2026.
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Not enough lookups to measure this week.
Card facts checked 2026-10-19. Parlae prints no card values. Set and brand names belong to their makers; Parlae is not affiliated with them.
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By the Parlae deskCard data updated Oct 19, 2026 at 10:22 AM ETHow this is builtReport a wrong number