(Close): After falling in early trade, the FTSE 100 ended the day slightly higher, with markets still concerned about developments in Greece.
By close of trading, the benchmark FTSE 100 index was up just 4.43 points at 6,753.75.
Builders' merchant Travis Perkins was the index's top gainer, up 2.8% thanks to a broker upgrade.
But shares in Burberry fell 2.6% after the fashion house reported a slowdown in revenue growth.
Retail revenue in the three months to 30 June rose 8% to £407m, slightly below analysts' expectations.
In the FTSE 250, shares in Entertainment One - which owns the rights to Peppa Pig - fell by 9% after major investor Marwyn sold a 9% stake in the company.
On the currency markets, the pound was down 0.1% against the dollar at $1.5620, but rose 0.3% against the euro to €1.4248.
