Swansea have re-signed Holland defender Tiendalli on a three-year deal.
"I'm very happy to have signed this contract," Tiendalli told the club's official website. "I had a great experience here last season and I'm delighted to be back.
"I know the people, the club, the stadium and the city. For me it's amazing to get back and to be part of Swansea City again.
"It took a little bit longer than expected to finalise, but my first thought was always to sign for Swansea.
"I played 25 games last season. That was a lot of games, more than I expected given the situation I was in last summer when I didn't have a club.
"I think I did a good job overall, but as a person I'm never satisfied and I believe I can always be better."
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