European shares gain on ECB stimulus bets; Greece leads
* FTSEurofirst 300 up 0.6 pct
* Greece, Spain, Italy lead rally ahead of ECB meeting
* Telenor, TeliaSonera rally after deal to merge units
* Metro, Adidas sink on worries over exposure to rouble
By Francesco Canepa
LONDON, Dec 3 (Reuters) - European stocks rose on Wednesday, led by shares in Greece, Italy and Spain, as investors bet the European Central Bank would signal further economic stimulus at a policy meeting on Thursday.
Investors wagered that ECB President Mario Draghi would open the door to the purchase of sovereign bonds at his press conference, traders said.
Greece's ATG, Spain's Ibex and Italy's FTSE MIB were the best performing indexes in Europe, rising between 0.8 percent and 1.7 percent, led by heavyweight banks, which have sizeable holdings of sovereign debt.
Italian yields fell below 2 percent for the first time, with Spanish equivalents down by a similar amount at a record low of 1.81 percent. The euro tumbled to a 27-month low against the dollar. Continuación...