Sheffield Wednesday defender Miguel Llera has penned a new one-year deal at the Championship club.
The Spaniard joined the Owls on loan in November 2011 before making the move permanent the following January, with his contract expiring this summer.
But Llera will now remain at Hillsborough for at least another 12 months having proved to be an integral part of their squad last term.
The 33-year-old has made a total of 66 appearances for the Championship club to date, scoring an impressive 10 goals.
Pompey are preparing themselves for life in League Two after a third relegation in four seasons and on Wednesday agreed a deal to train at facilities at the University of Portsmouth.
Catlin told The News: "It's great to be re-engaging with the university after years of not being as close as we should be.
"This has been a moving process, we explored many facilities - overall there were seven or eight we looked at. However, it is still part of our mid-term strategy to own a training ground.
"A key part of club strategy is we want to create a legacy - and part of that is going to have your own training ground and not renting.
"In the meantime, this is a very good deal for us financially."
