Pompey will be aiming for promotion to the Championship next season and have been very busy on the transfer front this summer as boss John Mousinho prepares for his first full campaign at the helm at Fratton Park. The former Oxford United man was brought in to replace former boss Danny Cowley earlier this year and has wasted no time in putting his own stamp on the squad over recent times.
Here is a look at the 17 most valuable League One players under the age of 23, with valuations courtesy of Transfermarkt, to see if any Pompey players are in there...
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