What is the (answer)?

Another early awkward attempt at integrating baseball cards and the internet was 1999 UD Choice. Each one featured a trivia question on the back, such as this poorly-written one on David Wells's card: "Mariano Rivera is one of three Yankee pitcher to have a 40-save season. Who are the others?"
Each card would then say "for the (answer) to the above question get online at www.upperdeck.com"
I got online at www.upperdeck.com but couldn't find the answer, but that's OK because I knew it anyway.

Dave Righetti and John Wetteland.