Contemporaries with polar opposite styles; they shared a common era, half of their ring monikers, quality time spent with Carpentier, and light heavyweight champion status. (and similar looking overall records) Had they ever crossed paths, how would this play out? Siki's freewheeling O vs. Levinsky's damper-throwing D?
At their best, I think Levinsky could have out maneuvered Siki en route to a clear, though certainly hard fought, decision. That said, at the point in the 20's when they could have fought, I think Siki bulldozes Levinski and stops him.