Portsmouth will be without captain Aaron Mokeona for their trip to Doncaster Rovers on Saturday because of a delay to his work permit.The 30-year-old is unable to play until his the permit is completed. [LNB]Pompey manager Steve Cotterill told BBC Radio Solent: "I told him to find out about his permit on Monday as it takes five days. [LNB]"If we'd known about this then he could've got it done when he was suspended in January." [LNB]The defender, who sat on the bench for South Africa's 2-0 win over Kenya on Wednesday, was banned for two games in January after picking up his 10th yellow card of the season in Pompey's 2-1 loss at Nottingham Forest.[LNB] I'm trying to find out some dates for his permit, and all will be revealed in good time Portsmouth manager Steve Cotterill "I knew that when he went out to South Africa he had a meeting in Johannesburg on Thursday morning and I told him to go see the coach about his permit," added Cotterill. [LNB]"From what I gather he couldn't get the time off, but I'm trying to find out some dates for his permit, and all will be revealed in good time." [LNB]Pompey are currently 20th in the Championship with just eight wins in 29 games, but a victory at Doncaster this weekend could lift them to 18th in the league table.