The 32-year-old Argentine defense ended his five years at Manchester City when he joined the Portuguese giants for thirteen million pounds.
Ruben Dias has taken the opposite direction in a contract of 64. 5 million pounds.
But he failed on Sunday to oppose Farense, the declining team of La Liga Primeira, following Thiago Silva and Gonzalo Higuaín who fought in their first matches for their new teams.
Otamendi started kicking a penalty for a foul on Serbian striker Nikola Stojiljkovic, winning a yellow card in the proceedings, but the kick was wasted through Scottish midfielder Ryan Gauld.
However, former Dundee United Gauld then prepared Jonatan Lucca to overtake Otamendi for Farense’s draw.
Then, when Benfica was leading 3-1 in time, the former City player stuck on the ball to let striker Patrick take his pocket and rush to score the visitors’ goal.
Otamendi got in here because of a shower of insults after tweeting: “Very satisfied with my debut and winning all 3 points. “
Comments included: Did I need to lose ?, waste of cash and had a game.
Another user wrote, “He escaped a penalty and became guilty of two goals, but in the first half he looked like the first Maldini. “
One frustrated gambler said: “You made me lose three hundred euros for the purpose you gave at the end. “
Otamendi made 210 appearances for City, scoring goals, following his arrival of 32 million pounds from Valencia in 2015.
The Argentine defender has won two Premier League titles, 4 League Cups and one FA Cup with Etihad.
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