Spurs lost at home to Chelsea on Sunday, despite leading 2-0, just three days after going down 1-0 at Bournemouth. It leaves Spurs with just one win in seven - which came at Manchester City - across all competitions.
The latest defeat saw Spurs drop to 11th in the Premier League, having picked up just 20 points from 15 games. The form has prompted speculation over Postecoglou's job, but vice-captain Romero has given his backing to his boss.
Romero told Telemundo: "He's a great coach. We saw it in the first season. In this second one we've suffered a lot of injuries.
"Players are the first ones to be criticised, then if we lose 10 games, the staff can be changed, but nobody talks about what is actually happening.
"We are very happy with this staff, me and my colleagues. We love how they work and the football they try to play. We'll try to move on quickly."
Spurs skipper [Heung-min Son](/topic/heung-min-son) believes the players “need to step up” as the club looks to correct an alarming inconsistent run of results.
"We've got to stick together in such difficult moments," he told Sky Sports, before adding: “I think it's time the players also need to step up. We need some big support and big cheering up."
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