What constitutes a strike for pleading guilty to a charge of personal infliction of serious bodily injury?

therefore constituted a strike. (Cf. People v. Delgado (2008) 43 Cal.4th 1059, 1072 [if a defendant makes a section 969f admission as part of a guilty plea, he concedes an offense is a serious felony, and "the serious felony nature of the offense will become an explicit part of the record of conviction, leaving no room for confusion if and when the issue becomes relevant to the sentence for a subsequent felony"].) As such, we cannot say the record contains overwhelming evidence for the personal infliction of serious bodily injury finding.