Rochina was restored to the starting line-up against Barnsley on Saturday and responded with a fine individual goal as Rovers claimed a first win in seven npower Championship outings.
But the former Barcelona B playmaker limped out of the action midway through the second half and watched the rest of the match from the bench clutching an ice pack to his leg.
Colin Kazim-Richards is pushing for a start after replacing the injured Simon Vukcevic at half-time during the 3-1 triumph at Oakwell.
Vukcevic was helped off by the Rovers medical team having been caught by a late challenge on the stroke of the interval, although the exact nature of his injury is unclear.
Reserve team boss Gary Bowyer is set to take charge of first-team affairs once more having led the team at the weekend in the wake of Henning Berg's sacking.
Veteran Portugal striker Nuno Gomes returned from a month out with a hamstring injury by making a late substitute appearance against Barnsley, but the Blackburn squad was missing a host of senior players.
Fabio Nunes (hamstring), Mauro Formica (foot) and Paul Robinson (back) were not expected to be involved but Gael Givet, David Dunn, Morten Gamst Pedersen and Dickson Etuhu were surprise absentees from the travelling party.
Rovers' official website said the players were "missing out through injury" but did not elaborate further.