The former Liverpool forward says the club have big decisions to make about their forwards.
United currently have Wayne Rooney, Robin Van Persie and Radamel Falcao at the club although the latter is not expected to become a permanent signing.
All three have struggled for goals this year, with the Colombian in particular coming in for criticism from fans and pundits alike while Van Persie has looked a shade of the player he was two seasons ago, despite being the club’s top scorer.
Now, Owen has said the club has a serious problem on their hands, as all three of their forwards are not getting any younger.
Manchester United have a serious problem now,” Owen said to BT Sport.
“They’ve got the three big hitters, who are 31, 29 and 29. There’s no longevity there and two of them are looking pretty tired now. Centre forward is a young man’s game; you need to be energetic and moving.”
The former United forward has also criticised his old club for the way they have used Wayne Rooney this season.
Manager Louis Van Gaal has employed his captain in a deeper midfield role for much of this season, despite Rooney having played the majority of his career as a centre forward.
The use of the England captain as a midfielder has sparked a massive debate about the subject, with England manager Roy Hodgson even commenting on the matter and saying he still sees his captain as a striker and will not be using him in midfield, according to Sky Sports.
Owen is of a similar opinion, saying he is amazed that the club have not been using their best striker in the right position for most of the campaign.
“I’ve been astounded how he [Rooney] has not been playing centre forward,” Owen added.
“He’s their best centre forward; he scores more goals than anyone else. He played centre forward last week and scored two goals.”