Notable losses in 'tune-up' fights?

Lewis-McCall
Morrison-Bentt
Judah-Baldomir, this might have been a mandatory but Judah was a huge favorite and had already hammered out a deal to fight Mayweather after this.
Jones-Green
Morales-Raheem

 

RJJ V Danny Green................. although BHop and RJJ still fought.

 

JMM vs Chris John
McClellan vs Benn
Foreman vs Briggs

 

Same as the Judah vs Baldomir, in regard to him being the first to face Floyd.

 

First one I thought of. Tommy was supposed to fight Lennox right after that "tune up", got sloppy, and Bentt made him pay for it. A microcosm for The Duke's career right there- comes off likely the best boxing performance of his career vs Big George only to get knocked out by Michael Friggin' Bentt.

A bunch of good examples have already been brought up. Ones I haven't seen mentioned yet:

Tszyu-Phillips, and perhaps the best example, Ali-Spinks.

 

Tommy Morrison - Michael Bentt

Vernon Forrest - Ricardo Mayorga

 

RJJ-Green barely counts.

 

RJJ - Glen Johnson

 

Even though it wasn't on paper, Bowe-Golota I - the mother of all tune up losses if you ask me.

 

Briggs vs Fields

Shoulda been a short night for the notable loser Fields but he didnt do as expected

 

morales vs raheem

 

Barrera vs Pacquiao

Can't believe this one didn't make the first page.

 

Sosnowski - Williams
Jones-Green
Lebedev - Macca

 

Cottoe Clottey <<< Clottey won that fight easy
Margaritoe Mosley
Money Gotti
Money Corrales

 

PBF/Gatti and PBF/Corrales were not considered "tune-up" fights!