German Chancellor Angela Merkel and French President Francois Hollande, heads of eurozone’s largest economies, presented a united front on the eve of the summit, urging Tsipras to make “precise” proposals in a bid to rebuild shattered trust and restart negotiations.“It is now up to the Government of Alexis Tsipras to make serious, credible proposals so that this willingness to stay in the eurozone can translate into a lasting programme,” Hollande said yesterday after crisis talks with Merkel in Paris.