The Red Devils hitman, who turned 35 today, started his Old Trafford career brightly after arriving in the summer.
United snapped up the former Barcelona man on a free after his time at Paris Saint-Germain came to an end, and fans took to the Swede immediately.
Ibrahimovic bagged the winner in the Community Shield against Leicester and then netted three times in his first two Premier League games.
But goals have been harder to come by since with Jose Mourinho's side hitting a few blips.
In his last five top-flight games, ever-present Ibrahimovic has scored just once. However, it's not for the want of trying.
The Sun report that the forward has taken the most efforts on goal of any player in the Premier League so far this season.
His 28 shots have resulted in only the four goals, resulting in a conversion rate after seven matches of just 14.29 per cent.
Zlatan Ibrahimovic failed to find the net against Stoke this weekend as Man United drew 1-1
Of all strikers in England's top-flight to have had at least 15 attempts, Ibrahimovic's percentage is the lowest.
The retired Sweden international's drop on finishing form has coincided with United winning just one of their last four league games.
And Mourinho will be hoping Ibrahimovic can return to his clinical self after the international break when the Red Devils face Liverpool at Anfield.
Alongside the wayward ex-PSG ace, who scored a record 38 Ligue 1 goals last term, is team-mate and fellow United summer signing Paul Pogba.
The £89m man has netted once from 20 efforts in midfield, giving him a five per cent conversion.
Thankfully for United, Marcus Rashford's potency remains as from just eight shots this season he has found the net three times - a 37.5 per cent conversion.