LME copper is well supported on potential disruption at Freeport McMoRan's Grasberg copper-gold mine in Indonesia, Xstrata Plc (XTA.LN) declaring force majeure on shipments at Argentinean Alumbrera copper-gold mine, says Standard Bank. Grasberg workers due to stage protest this week. Alumbrera output is expected to continue, and "we do not read too much into these news stories at the moment but will keep a close watch," Standard Bank says. LME 3-month copper last trades at $7,765/ton, up $65 vs Friday PM kerb.