The international manager will be casting his eye over Blues duo Ronan Curtis and Marcus Harness, as well as Brum midfielder Dan Crowley, ahead of his nation’s games against Switzerland and Bulgaria respectively next month.
Twice-capped Curtis has become a regular in the Eire set-up after being handed his debut against Northern Ireland last November.
The winger was named in the Republic of Ireland squad their 2020 European Championship qualifiers against Denmark and Gibraltar at the end of last season but was not utilised by McCarthy.
Most Popular
-
1
Former Portsmouth, Sunderland and Millwall ace Aiden O'Brien suffers setback as frustrating start to life at Shrewsbury continues
-
2
'I don't think I realised how much it would mean': ex-Cardiff City and Bristol City man's Portsmouth admission as he chases winning Fratton feeling after homecoming
-
3
Danny Cowley makes Portsmouth team selection admission following Cheltenham win - and gives honest assessment of current squad amid early-season promotion hopes
-
4
Colby Bishop gives Spurs loanee and England youngster Dane Scarlett raving reviews after making Portsmouth league debut
-
5
The role ex-Leicester City, Birmingham City and Charlton Athletic man wants to maintain at Portsmouth after guiding city's young gems at Reading
Coventry-born Harness, meanwhile, has been on Ireland’s radar after impressing for Burton last season and declaring his desire to play for the Green Army.
The attacking midfielder moved to Pompey for a fee approaching £1m last month and was named in Kenny Jackett’s starting line-up for their League One season-opener against Shrewsbury.
McCarthy told the Football Association of Ireland website: ‘I’m going to the game (Portsmouth v Birmingham City), hoping to see three players involved in Ronan Curtis, Marcus Harness and Danny Crowley.
‘Marcus and Ronan both started for Pompey at Shrewsbury on Saturday and I’d like to see both of them.’
Defender Sean Raggett will be another Blues player hoping to catch the eye of McCarthy.
The Norwich loannee told The News last month that his season-long loan at Pompey can provide him with the platform to make a Republic of Ireland breakthrough.
He missed the defeat at Shrewsbury with an elbow injury but is in contention to feature against Birmingham tonight.