Was the Muslim cricketer right to be offended, in the sense that his religious beliefs were not being respected? That seems to me to be a relevant question.
As far as I can see, there is no prohibition in the Koran or any Hadith against having alcohol sprayed over a Muslim willingly, let alone unknowingly. It isn't haram.
Drinking it certainly is:
"Narrated Abu 'Abdur-Rahman As-Sulami: that 'Ali bin Abi Talib said: "'Abdur-Rahman bin 'Awf prepared some food for which he invited us, and he gave us some wine to drink. The wine began to affect us when it was time for Salat. So they encouraged me (to lead) and I recited: 'Say: O you disbelievers! I do not worship what you worship, and we worship what we worship' - so Allah, Most High, revealed: O you who believe! Do not approach Salat when you are in a drunken state until you know what you are saying (4:43)."[17]
(Chapters of Tafsir Vol.5 Book 44 Hadith No. 3026).
"O you who have believed, indeed, intoxicants, gambling, [sacrificing on] stone alters [to other than Allah ], and divining arrows are but defilement from the work of Satan, so avoid it that you may be successful.
Satan only wants to cause between you animosity and hatred through intoxicants and gambling and to avert you from the remembrance of Allah and from prayer. So will you not desist?
And obey Allah and obey the Messenger and beware."
Koran 5 : 90-92
There is disagreement as to the punishment for drinking it, though. Some scholars prescribe twenty lashes, others say it must be forty.
But I can't see anything about how many lashes you get for getting it inadvertently sprayed over you by a Kufr cricket team mate.
Tl;dr