The Gambian teenager, known as 'OJ', has spent the last fortnight training with the Premier League side.
A number of eye-catching performances in recent pre-season
friendlies persuaded Pompey to take a gamble on the youngster, and he is now
set to be offered a deal on the
However, he is unlikely to be blooded in the top-flight next season, with Redknapp preferring to nurture the 18-year-old into a star of the future.
"OJ has done well, he's only 18 and I think he's a real prospect," the Pompey boss told The News.
"We're hoping to now get something done and keep him here permanently because I like him.
"He was at
"The lad was recommended to me so we had him over for the last couple of weeks and he's been tremendous.
"He's quick and has got a lot of everything.
"The kid wants to do well, he's willing to learn and hopefully he can do well here.
"I have already had half a dozen clubs wanting to play him this season, most of them are from the Championship.
"He's not ready for the Premier League but he's still young so his time can come."
After a long spell with English club Southampton which never went through due to the rules of the English football regarding a working permit.
Having married to a British citizen recently, has given him
the opportunity to work in
Omar Krumah was part of Coach Lorenzo Rubinacci's plans for
the
OJ played his football in the