Cardiff's £4m record-signing was forced out of their 1-1 draw on Tuesday in the 67th minute with an ankle problem.
Chopra scored before he was replaced by Wales star Craig Bellamy and the seven-goal striker hopes for a quick return.
"I had to come off with a knock on my ankle but hopefully I won't be out for too long," said Chopra.
The 27-year-old will face a late fitness test ahead of second-placed Cardiff's trip to Championship promotion rivals Nottingham Forest, who lie in fourth place, on Saturday.
Chopra was sidelined for almost two months earlier in the season after Chopra ruptured ankle ligaments in their 4-0 win over Doncaster Rovers in August.
The former England under-21 international has made 20 starts this season as part of Cardiff's star-studded three-pronged attack alongside on-loan Manchester City forward Bellamy and recent England call-up Jay Bothroyd.
Chopra scored 21 goals last season but has scored just seven this term as Bothroyd has taken on the goal-scorers mantle as his 15 goals this season ensures he is one of the Championship's top-scorers.
Jason Koumas, Chris Burke, Jay Emmanuel-Thomas, Craig Bellamy and Peter Whittingham will bid to join frontman Bothroyd in Cardiff's three-man attack at the City Ground on Saturday.
Source: BBC Sport