Ellis Harrison’s Fratton Park debut received Michael Eisner’s seal of approval.
The Pompey chairman heaped praise on the striker’s ‘strong showing’ in the Carabao Cup first-round win over Birmingham.
Harrison fired a double either side of half-time on his home bow as the Blues eased to a 3-0 success.
Ben Close was also on target with a superb 39th-minute volley.
After arriving from Ipswich for a fee around £450,000 this summer, Harrison failed to hit the goal trail during pre-season.
The capture of John Marquis for £1m-plus last week meant the Welshman had to settle for a place on the bench in the League One curtain-raiser defeat at Shrewsbury on Saturday.
But with Marquis missing for the Birmingham clash – due to his partner going into labour – it gave Harrison a chance to impress.
And his display was given a thumbs up by Eisner.
The Blues owner wrote on Twitter: ‘Nice win for @Pompey and strong showing for Ellis Harrison. #PUP #CarabaoCup.’
Pompey director, Eric Eisner, added: ‘The lads played great tonight. Roll onto Saturday #PUP.’