The Liverpool winger proved the matchwinner against Trinidad & Tobago this week.
Speaking after the friendly win, Wales boss Giggs said: “He's at a very good club who will look after him.
“Very often the first loan move doesn't quite happen for different reasons.
“Sheffield United were doing so well and he was in and out of the team, but he's back now and he looks fit but when you've got that talent it doesn't go away.
“Now he's got himself in really good physical condition and he's a threat.
“The last few camps he's been really good in training and you can see the quality.
“I was dying to give him a game.
“It was great to see him score late on and persevere like he did [last night]."