Thorniley was stretchered off in the 72nd minute as Sheffield Wednesday went down 2-1 at Millwall.
Some Sheffield Wednesday fans were unimpressed by the former Everton man's social media activity.
George Hirst has failed to appear for Sheffield Wednesday at any level this season, following a contract dispute, and seems destined to leave Hillsborough in the summer.
The former Everton youngster signed for Sheffield Wednesday in 2016.
Sheffield Wednesday defender Jordan Thorniley was handed his debut in Jos Luhukay's side's last match.
Thorniley moved to Sheffield Wednesday 18 months ago from Everton.
Sheffield Wednesday lost 4-2 at home to Sheffield United on Sunday.