A dispute over television broadcasting rights saw a match in the Brazilian Campeonato Paranaense on Sunday called off at the last moment.
2018 ScheduleAll times ET
"I called him on Saturday to ask him to come back to Penarol," Damiani said of Forlan.
Brazil have replaced injured goalkeeper Fernando Prass with Weverton Pereira Silva on the squad for the Olympics.
Earlier this week, the Colombian coach said he will be deciding his future in the coming days.
A competition meant to be the precursor to a Brazilian Premier League was officially formed after a meeting by member clubs on Thursday.
The 19-year-old, who earlier in the week posted photos of himself signing the deal, will move to Stamford Bridge on July 1.
Brazilian midfielder Nathan has a deal to join Chelsea, the 19-year-old confirmed on Monday night.
Chelsea are set to complete the £4.5 million signing of highly rated Brazilian Nathan this week, sources have told ESPN FC.
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