Dave Sims began as a newspaper reporter before transitioning to TV and radio, including as a host in the early years of WFAN.

Sims, known for signature calls such as “Hey now” and “Giddy up, baby,” has been the Mariners’ television play-by-play man since 2007. The Philadelphia native will now join the 78-year-old Suzyn Waldman, Sterling’s longtime broadcast partner, in the Yankees’ radio booth. WFAN is close on a deal to hire Dave Sims as John Sterling’s replacement.

Mariners TV announcer Dave Sims was named WFAN’s new play-by-play broadcaster on Yankees games, the station announced Thursday

Dave Sims will be the lead broadcaster for Yankees games on WFAN Radio, taking over for the retired John Sterling.

Dave Sims, who has spent the past 20 years calling Mariners games, will replace John Sterling as Suzyn Waldman's play-by-play partner on Yankees radio broadcasts.

The New York Yankees have reportedly made a decision on who will replace John Sterling as their play-by-play voice on WFAN.

The Mariners will have a new voice in the broadcast booth next season. Dave Sims has been hired to become the new radio voice of the New York Yankees, the team and Sims announced Thursday on social media.

WFAN and the Yankees are set to hire Dave Sims, 71, to be their new radio play-by-player succeeding the retired John Sterling, according to sources briefed on the agreement. Sterling, 86, stepped away from the broadcast booth earlier this year but returned to be the team’s lead play-by-player for its postseason run.

The man replacing John Sterling as Suzyn Waldman's play-by-play partner on New York Yankees radio broadcasts has spent the last 20 years calling games.