No, not at all Dusan. I might analyze a player completely different than you or someone else. I might be looking at something completely different than individual play. That does not make me biased. Not at all.
biased

ast participle, past tense of bi·as (Verb)1. Show prejudice for or against (someone or something) unfairly: "the tests were biased against women"; "a biased view of the world".
2. Influence unfairly to invoke favoritism: "her story failed to bias the jury".
I might see something different, but that certainly doesn't make me biased.