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opponent

In a sentence
Bolo super.
It was great.
V finále stretne silného súpera.
In the final he will face a strong opponent.
Súper vyrovnal skóre tesne pred koncom.
The rival equalized the score just before the end.
Domáci tím porazil silného súpera v predĺžení.
The home team beat a strong opponent in overtime.
Examples from Tatoeba (CC BY 2.0 FR).
Source
Slovak National Corpus (SNK) ↗English gloss from the frequency publish path. Includes Tatoeba example sentences when present.
Full attribution on References.