Anthony Gardner suffered a suspected torn achilles as Wednesday made it three successive draws in a 1-1 scoreline at Middlesbrough.
Gardner was carried off minutes before half-time and Dave Jones said we will now have to wait for the results of a scan tomorrow for a definite diagnosis.
Michail Antonio fired us in front after 35 minutes but the home side were level three minutes after the interval through Mustapha Carayol.
We then rode our luck on more than one occasion in the second-half while Antonio missed a good chance near the end as Wednesday broke clear.
Jordan Spence, on a 28-day loan from West Ham, replaced the injured Lewis Buxton at right back while Jermaine Johnson returned from his three-match ban.