US STOCKS-Wall St set to open lower as Greece worries resurface
* First-qtr GDP contracted 0.2 pct vs earlier estimate of 0.7 pct
* Weekly mortgage applications rise
* Lennar rises after quarterly profit beats expectations
* Futures down: Dow 81 pts, S&P 6 pts, Nasdaq 26 pts (Adds details, comment, updates prices)
By Tanya Agrawal
June 24 (Reuters) - Wall Street was set to open lower on Wednesday after a setback in Greece's debt talks even as data showed that the U.S. economy's first-quarter contraction was smaller than earlier thought.
Greek Prime Minister Alexis Tsipras has attacked the stance of "certain" creditors as "strange" because they rejected proposals presented by Athens to bridge a budget gap, a government official said without referring to specific proposals or which of the three institutions Tsipras was blaming for the deadlock.
Tsipras will meet the heads of the European Central Bank, the International Monetary Fund and the European Commission in Brussels before a meeting of euro zone finance ministers at 1300 p.m. ET (1700 GMT).
Greece needs fresh funds to avoid defaulting on a $1.8 billion debt repayment to the IMF on June 30. Continuación...