|Date of birth||29 September 1928|
|Place of birth||San Martino Buon Albergo, Italy|
* Senior club appearances and goals counted for the domestic league only.
Tessari is most noted for his career at Roma where he spent a considerable amount of seasons. In 1970, he came back to the club as manager on an interim basis after club president had gotten rid of Helenio Herrera.
His term of management was notable for losing the semi-final of the Cup Winners' Cup against Polish side Gornik Zabrze on a coin toss after a third deciding match ended in a draw after extra-time. Many Roma fans had celebrated victory well into the night after the second leg after mistakenly believing that away goals had counted double.