UPDATE 1-UK Stocks-Factors to watch on Friday October 10
(Adds futures, company news)
EDINBURGH Oct 10 (Reuters) - Britain's FTSE 100 index is seen opening lower on Friday, with futures on the index down 1.1 percent ahead of the cash market open. For more on the factors affecting European stocks, please click on
* The blue-chip FTSE 100 index closed down 0.8 percent, or 50.39 points, at 6,431.85 to post its lowest close since October 2013 on Thursday, giving away early gains in a broad-based sell-off as investors fretted over signs of serious weakening in the euro zone economy.
* The S&P 500 on Thursday posted its largest percentage decline in six months on concerns about the strength of the global economy and its effect on corporate earnings.
* Brent crude futures tumbled nearly $2 to below $89 a barrel on Friday, hit by the weakening economic outlook, while gold, considered a safe haven in times of uncertainty, was set for its best week since June.