David Robertson leaves Yankees for Phillies’ $23 million

The Phillies landed a key free agent with whom the Yankees were involved. No, not that one. David Robertson is going to Philadelphia on a two-year deal worth $23 million, with a 2021 club option, the Phillies announced Thursday. Robertson, who finished last season with a 3.23 ERA and 91 strikeouts in 69 2/3 innings,…