The veteran trainer is fully convinced the 26-year-old will put rumours regarding his future to one side for the Confederations Cup semi-final against Brazil
The Napoli forward is understood to be nearing a move away from Stadio San Paolo this summer, with Real Madrid, Paris Saint-Germain, Manchester City and Chelsea all showing interest.
However, Tabarez says the talisman will put the speculation regarding his club future to one side in a bid to aid his country's passage to the Confederations Cup final at the expense of the Selecao.
"This is about the private life of a professional footballer. There is no lack of concentration from Cavani," the coach told a press conference.
The 66-year-old went on to reveal how he predicted the star would soon attract some of Europe's elite clubs, much to the annoyance of Napoli president Aurelio De Laurentiis.
He added: "De Laurentiis got mad at me two years ago when I said it was a matter of time before Cavani would prove to be one of the world's best players - now he is top goalscorer in Italy."
Meanwhile, the veteran trainer turned his attentions toward Brazil and believes the two sides could serve up a classic, while warning the Selecao of Uruguay's attacking options.
"Everybody's worried about Brazil and their attack, but they have not yet faced a team with an attack as powerful as ours," he added.
"But we believe in what we've been working at for the past seven years and we hope this match will be remembered as one of the greats."
La Celeste's clash with Luis Felipe Scolari's men is due to kick off at 21:00 CET.