Robin van Persie was Fenerbahce's matchwinner with his first touch in their Europa League play-off round tie away to Atromitos on Thursday night.
The 32-year-old Dutchman, who joined the Istanbul club from Manchester United earlier this summer, came on as an 80th-minute substitute with the tie in Greece goalless and headed in the winner in the final seconds.
Manchester United have still not agreed a fee with Fenerbahce for the transfer of Robin van Persie even though the striker has already been unveiled by the Turkish giants.
Van Persie flew to Turkey on Sunday before completing a medical the following day and then agreeing terms on a three-year contract.
The 31-year-old then appeared at a grand unveiling ceremony at the Sukru Saracoglu Stadium in Istanbul on Tuesday.
Thousands of fans gathered outside Fenerbahce's stadium to welcome the striker and the player spoke of his delight at joining the club, but Press Association Sport understands the deal has not been completed yet as both teams have yet to agree a fee.
United do not expect to receive a big sum for the Dutchman given that he turns 32 in three weeks' time.
A figure of around £5million has been mooted for the forward, who scored just 10 goals for the club last term.
United are on the lookout for a replacement for Van Persie. Paris St Germain's Edinson Cavani is on their radar and the club retain an interest in Tottenham striker Harry Kane, even though they realise it will be extremely difficult to prise him away from White Hart Lane.
Robin van Persie was welcomed to Fenerbahce on Tuesday afternoon as the Turkish club prepared to unveil the Manchester United striker as their new signing.
The 31-year-old arrived in Istanbul over the weekend and will take part in a signing ceremony at the club's stadium at 6pm local time (4pm GMT) where he is expected to finalise his transfer from United.
Robin van Persie has flown to Istanbul to finalise the details of his move from Manchester United to Fenerbahce.
The Dutch striker was photographed in a Fenerbahce scarf on the runway ahead of departing for Istanbul.
Manchester United forward Robin van Persie is on the brink of a move to Turkish club Fenerbahce after reaching an agreement with the Super Lig side.
Van Persie’s agent has reportedly been in Istanbul this week to secure a deal. The two clubs are currently negotiating a fee and four-year deal for the 31-year-old Dutchman, who has agreed personal terms.
Lazio sporting director Igli Tare has ruled out a move for Robin van Persie, claiming the Manchester United forward is "unfortunately, outside our parameters".
Van Persie, who is tied to United for another season, was spotted in Rome this week, leading to speculation that the 31-year-old could join Lazio.
"On Van Persie, all I can say is that I respect him as a striker but unfortunately, he is outside our parameters," Tare told Lazio Style Radio. "There has never been a meeting, this is gossip, not transfer news.
"We don't want to create illusions, this is not true."
Some of Man United's hardened supporters may have received a shock on Sunday when striker Robin van Persie celebrated a Man City victory.
The Dutch striker's son plays for City's under-9 team, and he leaped into the air with joy when they secured a victory at his youth tournament in Maassluis, Holland.
Named the 'Robin van Persie International Tournament,' it was set up by the striker to raise funds for the Sophia Children's Hospital in Rotterdam.
The event featured 14 teams from around the globe including City, Chelsea and Tottenham Hotspur.
Emile Heskey and Darren Fletcher, whose son also plays for City's youth team, were also present to see Feneyoord lift the trophy.
Robin van Persie will not be taking penalties for Manchester United anytime soon, Louis van Gaal has confirmed.
The Dutch striker missed a vital spot-kick in his side's weekend loss to West Brom.
"No, he is now at the end of the road," the United boss said when asked if Van Persie would continue taking penalties.
"It is always (like that). Wayne has missed also so when you miss you are at the bottom again."
Louis van Gaal has confirmed that striker Robin van Persie is an injury doubt for Saturday's Premier League clash at QPR.
Van Persie is struggling with the ankle injury that forced him off during last weekend's defeat to Southampton, and will be assessed by United's medical staff tomorrow morning.
Robin van Persie has confirmed he will not attend the FIFA Ballon d'Or ceremony in Zurich because of the ankle injury he suffered in Manchester United's defeat to Southampton.
Van Persie's World Cup header against Spain is one of three goals shortlisted for the Puskas goal of the year award, which is due to be handed out at a lavish ceremony in Switzerland on Monday evening.