Watch: Tony Kemp home run gives Astros lead in Game 4

Tony Kemp smacked a tie-breaking home run for the Houston Astros during Game 4 of the ALCS on Wednesday night.

Kemp took Boston Red Sox starter Rick Porcello over the fence in right field for a home run to give Houston a 4-3 lead.

The @Astros are relentless. #ALCS pic.twitter.com/nxpsUqphoT

— MLB (@MLB) October 18, 2018

Kemp, the team’s No. 9 hitter, entered the game with just seven career home runs. But he took Porcello deep for what was probably the biggest dinger of his career. It also was an improbable hit, as it had just a 4 percent hit probability.

Tony Kemp's tiebreaking HR:
89.7 mph exit velocity
36-degree launch angle

That's a 4% hit probability.

It's the softest HR hit in the postseason since Statcast's intro in 2015. The only one below 90 mph. Still counts!

— David Adler (@_dadler) October 18, 2018

Between this and his controversial catch in Game 3, it’s been a big series for Kemp.