Weaver was once such a high profile acquisition for the Diamondbacks that it came as part of the package they received to send the superstar Paul Goldschmidt to the cardinals. After his first 12 starts for Arizona, it looked like he had a fan turn on their hands. Weaver rolled out a 2.94 ERA in 2019 with a 40.7% globe rate, 26.5% strike rate, and 5.4% walking rate. Unfortunately, the forearm dynasty ended his season early and he hasn’t quite been the same since.
Weaver was healthy for the shortened 2020 campaign, making 12 starts and throwing 52 rounds but setting an ERA of 6.58 in that time. He did even better in 2021, dropping his ERA to 4.25, but was limited to just 13 times due to a shoulder injury. Entering this season, the D-Backs transferred him to the Bullpen, with encouraging and frustrating results. His 7.71 era is certainly unattractive, although there are reasons to believe that this is not a true reflection of his work. His 24.1% hit rate and 6.2% walk rate is better than the league average, and he also allows only 7.7% of his flyballs to leave the yard. What seems to hurt his age is an unsustainable 0.434 hit rate on balls during play and a 55.9% strand rate.
However, this is a sample of only 16 1/3 rounds after multiple seasons of disappointing results. The royal family won’t have much time to get Weaver back on track, as he’s set to hit free agency after the 2023 campaign. He’s paid $2.875 million this year and is eligible for another chance to arbitrate next year.
In exchange for Weaver, the Diamondbacks will get Rivera, 26, a cornerback who hasn’t achieved much in the major tournaments but has shown a lot of hope in the juniors. Since his MLB debut last year, he’s made 92 appearances and hit .243/.294/.378 for 87 games. However, in 63 Triple-A games last year, he made .286/.348/.592 for wRC+ out of 144. In 20 games there this year, his streak was .307/.388/.520, 142 wRC+ .
Rivera is primarily a third baseman and is likely behind him Josh Rogas On the Arizona depth chart, though, Rojas are able to relocate elsewhere on the field if they really want to give Rivera a shot. Rivera also played some first bases and might see some time there if the D-Backs pull the trigger on Christian Walker Trade, as they reportedly looked. Whatever his business, Rivera comes with an extended window of control, having entered this season with less than a year of MLB service time. He could also be selected for the remainder of this year as well as another season, which could delay his free agency and arbitration.
As for the royal family, they likely felt Rivera had been pressured by the mix of their crowded corner Nikki Lopez Get a lot of playing time in third place, while Vinnie PasquantinoAnd the Nick Prato And the Hunter Dozer Also present to perform the functions of the first exterior base or corner. The particular hitter hole is also a bit occupied between that group and the star duo Salvador Perez And the MG Melendez. They used that surplus of angle bats to add an intriguing boom, while the Diamondbacks took a pitcher they couldn’t get good results from and turned it into a manageable depth of ground option.