via Live Leak.
ENGLISH TRANSLATION BELOW. Syria: Dual Air between SU-30 Russian SM Sukhoi and F-15 Israeli Published October 2, 2015 by Strategika51 EXCLUSIVE-Strategika 51: Six Russian multirole fighter Sukhoi type SU-30 SM put to flight Israeli fighter McDonnell Douglas F-type 15 off the Syrian coast. The Israeli aircraft flying for months Syrian airspace and especially Naval Air Station Latakia bridgehead of Russian forces in Syria. Israeli aircraft generally follow a fairly complex flight plan and approach Latakia from the sea in the night of 1 October 2, 2015, six Sukhoi SU-30 Russian SM took off from the Syrian air base Hmimim towards Cyprus before intercepting in attack position four Israeli F-15 fighters. Surprised by an unexpected situation and probably not prepared for a dogfight with one of the best Russian multirole fighter, Israeli pilots have quickly turned back to the South by flying at high speed Lebanon. The Lebanese army has officially announced to Z 2313 (local time) that four "enemy aircraft" (Israeli) had crossed the airspace of Lebanon. This "incident" between fighter aircraft Russian and Israeli has stunned the command of the Israeli Air Force, which held that a possible air battle between the Israeli F-15 and Su-30 Russian would have led to the destruction of four Israeli aircraft.Sorry guys but this smacks of propaganda.
The Israeli Air Force are pros. Quite honestly the battlespace that they're seeing develop is probably giving their commanding officers massive hard-ons. This is the type of fight that the fly boys want. No close air. No bombers. Just fighter on fighter against a competent foe (well to be honest they'd prefer if the opponent was a bit behind and not equal but you get the point).
So I was almost ready to buy it until they added that the "incident" stunned the IAF command.
Did it happen? Who knows. Probing to test the reaction of the enemy is common...even in peacetime. I think I'll wait for more info before I go all in on this actually occurring.