UK Stocks-Factors to watch on Aug 8

Aug 8 (Reuters) - Britain's FTSE 100 index is seen opening 16 points lower at 7516.3 on Tuesday, according to financial spreadbetters. * WHITBREAD: Samhi hotels is looking to buy the Indian portfolio of Whitbread Plc's Premier Inn business for 6 billion rupees according to media reports in the Times of India. * BREXIT: A shortage of staff for British employers worsened in July, hurt by the departure of European Union workers after last year's Brexit vote, a group representin