A signed contract -- with the obligatory brawl -- between Undisputed WWE Champion Cody Rhodes and Drew McIntyre , a potential Brock Lesnar -Paul Heyman reunion, another impressive victory for women's tag team champions Charlotte Flair and Alexa Bliss and another U.S. title defense by Sami Zayn highlighted SmackDown's go-home show Friday ahead of Saturday's Wrestlepalooza ( 7 p.m. ET on ESPN Unlimited ).

Here are the biggest takeaways from Friday night:

Sept. 19 SmackDown results

Charlotte Flair and Alexa Bliss def. Chelsea Green and Alba Fyre to retain the Women's Tag Team Championship.

Bronson Reed and Bron Breakker def. Fraxiom.

Sami Zayn def. Carmelo Hayes to retain the U.S. Championship.

Signed, sealed and (head-butt) delivered

Contract signings rarely happen in

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