The Blues completed deals for midfielder Abdoulaye Kamara from Borussia Dortmund and goalkeeper Nicolas Schmid from Austrian outfit BW Linz, with both signed in time to be available for this weekend’s trip to the Riverside.
That should provide head coach John Mousinho with a welcome selection headache. But what is their current fitness levels or the likelihood they will feature against Boro?
Also, what’s the latest state of play with the Blues’ injuries after Marlon Pack went off against Luton last weekend with a head injury? Pompey went into then game with seven players unavailable - Regan Poole (ACL), Tom McIntyre (hamstring), Jacon Farrell (knee), Josh Murphy (ankle), Kusini Yengi (groin) and Gavin Whyte (illness).
Here’s the very latest as Pompey look to maintain their unbeaten start to their Championship return against Michael Carrick’s Middlesbrough.
9. Josh Murphy
John Mousinho said: 'Josh is in the same boat as Jacob.' Photo: Jason Brown
10. Gavin Whyte
The winger has fully recovered from the bug he picked up ahead of last Saturday's draw against Luton. | National World
11. Regan Poole
The centre-back stepped up his recovery from an ACL injury ahead of the Leeds game but still not close to being in contention. | Habibur Rahman