Reuters sources story
The market fears a squeeze in the repo market at Quarter end
Political, technical and legal hurdles stand in the way of the ECB lending out sov bond holdings
There's been rumblings of how the ECB needs to help markets by providing the liquidity from all the bonds they've been hoovering up and there has been calls for the ECB to lend out some of its holdings.
The basis of the story is that the ECB are unlikely to offer anything up on this at Thursday's meeting.