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Live: Simon Mignolet web chat with Sunderland expert Mark Douglas from 1pm

Simon Mignolet is due on Merseyside today to put the finishing touches on his £10m transfer to Liverpool FC.

The Sunderland goalkeeper is scheduled to undergo a medical at the Reds’ Melwood training ground on Tuesday afternoon, and is expected to agree a five-year contract.

The 24-year-old will become Brendan Rodgers’ fourth signing of a productive summer at Anfield, and will take the Reds’ close-season spending to around £24m.

The deal for Mignolet involves an initial payment of £9m to Sunderland, with another £1m due in performance-related add-ons, based on appearances and achievements. It will make the Belgian the most expensive goalkeeper in the history of the club.

His signing will, naturally, raise question marks over the future of Pepe Reina at Anfield. The Spaniard has been the Reds’ first choice since his arrival at the club in 2005, making 394 appearances.

Despite Rodgers’ public assertion that Mignolet has been signed as competition rather than as a replacement, it is understood that Liverpool are still privately braced for Reina’s departure this summer.

Nonetheless, the player himself has welcomed Mignolet’s signing.

Reina said: “Every team needs competitors, and when it’s positive it is more than welcome. If it is finally done, I’ll welcome him a lot and anything he needs, I’m here.”

He added: “It (the situation) has not changed a bit. I have said it many times, I’m very comfortable and very happy at Liverpool.”

Rodgers, meanwhile, remains keen to add further to his squad this summer, though negotiations to sign Shakhtar Donetsk midfielder Henrikh Mkhitaryan and Sporting Lisbon defender Tiago Ilori have yet to reach a suitable conclusion.

FC Porto winger Christian Atsu, who is valued at around £4m, is another target. And although it is understood that reports linking the Reds with a move for Celtic’s powerful midfielder Victor Wanyama are premature, the player is rated by the club.

Suggestions that midfielder Jordan Henderson could be sold in order to raise funds are also understood to be wide of the mark. Liverpool’s transfer budget could, however, receive a boost this week, if one-time target Tom Ince joins Cardiff City.

The Blackpool winger is understood to be on the verge of an £8m switch to the Premier League new boys. And that would mean Liverpool, who sold Ince to Blackpool for £250,000 back in 2011, would now be entitled to around £2.8m due to a 35% sell-on clause agreed in that deal. Liverpool had tried to bring Ince back to Anfield in a £4m switch back in January, but dropped their interest after they were unable to agree a deal with Blackpool.

More on this: Heir to the throne - can Mignolet fill Reina's boots?