Three points and goal difference are on the line on April 15.
A win reshuffles group standings and eases qualification; a loss forces riskier away fixtures. Form and morale for the next month depend heavily on this result.
Fluminense's starting XI and coach control the offensive plan and squad rotation.
CS Independiente Rivadavia's side, plus their goalkeeper and set-piece takers, will supply counterattacks and defensive resilience. Match officials and any late injury call-ups matter for both lineups.
Recent form, injuries, and squad rotation are the main causal levers for the outcome.
Tactics, set pieces, referee decisions including VAR, and travel fatigue for the visiting Argentine side will shift in-game probabilities. Weather and pitch condition can amplify mistakes or slow play.
Kickoff is scheduled for 15 April; official lineups are normally published one hour before kickoff.
Watch for starting goalkeeper choice, late injury reports, and whether either coach fields a rotated squad. Early corners, set-piece chances, and any VAR review in the first half will be early indicators of match shape.