Ibrahimovic has been a revelation for Manchester United since joining from Paris Saint-Germain on a free transfer last summer.
The Swedish striker scored again yesterday to help the Red Devils beat Sunderland 3-0.
Jose Mourinho claims Manchester United are over-reliant on Zlatan Ibrahimovic
He now has 28 goals in all competitions for Jose Mourinho’s side.
But United legend Giggs believes the club are too reliant on the 35-year-old.
There's not a lot wrong [with the team]," Giggs told Singaporean outlet Today.
Manchester United player ratings against Sunderland
Sun, April 9, 2017
Express Sport rates how the Manchester United players performed during their Premier League clash with Sunderland
1 of 15
Which Manchester United players impressed during their clash with Sunderland?
"The performances are good and defensively we look strong.
Get Quotes on Home Insurance
"It's just that concentration in [front of] goal and just that over-reliance, really, on Ibrahimovic.
"He's the centre-forward, but you need goals to come from everywhere, be it the wide men, midfielders, or even the defenders chipping in at set pieces."