So, is this sentence can be use
I am his teammate last match. (but we are not teammates this match now )
I was his teammate last match
If the last match've just ended recently
No, not really. The phrase "last match" locates the statement in the past, so the past tense "was" should be used.
Historic Present eg "Last Saturday, I arrive at midday to collect the deliveries and he's fast asleep! So I creep up close and shout ..."