Gorka Marquez has a number of tattoos on his body - but the largest by far is the impressive inking covering his back.MORE: Strictly's Gorka Marquez breaks silence on 'tension' with Katie McGlynnThe Strictly star took to Instagram this week to share a number of photos showing him working out at the gym, and inadvertently also showcased the large design on his back as he faced away from the camera.WATCH: Gorka Marquez and daughter have adorable argumentThe tattoo comprises of a realistic tiger's