July 21 (Reuters) - Britain's FTSE 100 .FTSE index is seen opening lower on Tuesday, with futures FFIc1 down 0.6%.

* DIAGEO: Diageo's DGE.L chair John Manzoni is planning a shake-up of its board and is searching for new board directors with commercial experience in the drinks or drinks distribution sectors, the Financial Times reported.

* LSEG: The London Stock Exchange LSEG.L has unveiled plans to launch a night-time trading venue in the first half of 2027, the Financial Times reported.

* IP GROUP: IP Group's IPO.L board of directors unanimously rejected a sweetened 71.3 pence-per-share takeover proposal from Railpen, citing significant undervaluation of the company and its prospects.

* BT GROUP: A £167 million stake in Britain's BT Group BT.L was offered for sale via an accelerated bookbuild, a bookrunner said.

* OIL: Oil prices softened, with markets weighing reports of mediation efforts between the U.S. and Iran against an exchange of fresh attacks between the two.

* GOLD: Gold prices rose as investors weighed diplomatic efforts to ease the U.S.-Iran conflict, which could temper oil-driven inflation risks and influence the U.S. Federal Reserve's interest rate path.

* METALS: Copper ticked up, supported by fears of supply-side tightness and strong Chinese buying, despite macroeconomic demand worries from the escalation in the U.S.- Iran war.

* FTSE: The main UK stock indexes closed lower on Monday as continued U.S.-Iran tensions sapped risk sentiment globally, offering a muted reaction to Andy Burnham becoming Britain's seventh prime minister in a decade.

* UK CORPORATE DIARY:

Compass Group	CPG.L	Q3 trading update
Wickes	WIX.L	Q2 trading update
Fuller Smith & Turner	FSTA.L	Trading update
SThree	STEMS.L	HY results
Mony Group	MONY.L	HY results
Mitie	MTO.L	Q1 trading update

* For more on the factors affecting European stocks, please click on: LIVE/

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