Injury forced the Nigerian winger to miss the AC Milan classic and the visit to Vitoria Guimaraes earlier in Pompey's Uefa Cup campaign.
Now a hip complaint has sidelined him for tomorrow's crucial visit to Germany.
The 26-year-old has a problem with one of the muscles at the top of his hip, sustained in the 2-2 draw with Hull.
And, despite returning to running yesterday, he is not expected to come back to full training before next week.
>>> Follow the Wolfsbury v Pompey live online with The News' text commentary service. Click here for more information.It means Utaka will be absent from Tony Adams' plans for a match which could decide their Uefa Cup fate.
There's brighter news, however, over Sol Campbell and Younes Kaboul.
Campbell, who has missed the past four matches with a toe injury, was able to take part in a light session with his team-mates yesterday for the first time.
He had previously spent last week running outside and is in the frame to feature against Wolfsburg.
Kaboul was left with a painful shin after stretching his ankle against AC Milan, but scans have revealed there is no long-term concern.
Pompey's medical staff are now waiting for the soreness to settle before the next course of action, but the Frenchman has an outside chance of returning.
Never miss a Portsmouth FC story... Get them sent straight to your e-mail inbox.... click here to subscribe.
The full article contains 265 words and appears in The News newspaper.