The Red Devils were held to a 1-1 draw with Southampton at St Mary’s on Saturday afternoon to drop crucial points in the top-four race.
Summer signing Daniel James broke the deadlock in the 10th minute but the Saints levelled in the second half thanks to Jannik Vestergaard’s equaliser.
The Red Devils had 21 shots on goal but Manchester United couldn’t find a winner in the final 32 minutes of the Premier League clash.
Manchester United have failed to win their last three Premier League games, scoring three goals against Wolves, Crystal Palace and Southampton.
Ole Gunnar Solskjaer sanctioned the sale of Romelu Lukaku and Alexis Sanchez last month to leave Manchester United light on options up front.
The 20-time English champions will have to rely on Marcus Rashford and Anthony Martial to fire them to a top-four finish this term.
Former Manchester United defender Ferdinand is worried about their poor finishing in front of goal so far.
“I think the main part is they haven’t been ruthless or clinical enough in front of goal when they have had games and positions to win,” Ferdinand said on BT Sport.
“Wolves, they got back in the game against [Crystal] Palace, and here again today.
“They had teams waiting there to be beaten and they didn’t have the ruthlessness, maybe the experience, the nouse, to get over the line.”
Manchester United are in seventh place in the Premier League table and seven points adrift of leaders Liverpool FC after just four games.
The Red Devils will take on Leicester City in their next Premier League game on Saturday 14 September.
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