Brewers: 5 Rookies Guaranteed To Make Their MLB Debut In 2023

3. OF Joey Wiemer

The Brewers promoted the trio of Mitchell, Frelick, and Joey Wiemer together from Double-A up to Triple-A in August last season. All three played well, but Wiemer put up the "worst" numbers of the three. The word "worst" is relative because he still posted a .287/.368/.520 slash line with 15 doubles and six homers in 43 games for the Nashville Sounds. That's pretty good for having the "worst" production of the group.

But overall Wiemer did struggle in 2022 relative to his breakout 2021 performance. His power output dipped a bit to 21 homers and he struck out 147 times, equating to a 30.3% K rate. That's cause for some concern and may perhaps mean that Wiemer needs a little more seasoning in the minor leagues to iron that out.

Wiemer has immense power and has a cannon for an arm in right field. He's likely the rightfielder of the future in Milwaukee. He also brings plenty of speed on the bases, swiping 31 bags this past season.

Wiemer doesn't seem as ready for the big leagues as Frelick does at the moment. He went through quite the slump in Double-A Biloxi this season. But there is reason for optimism. After his promotion to Triple-A, Wiemer was rejuvenated and his strikeout issue subsided a bit. He had just a 22.6% K rate with 34 Ks in 150 ABs in Nashville, which is much more manageable.

There are some questions about the legitimacy of the hit tool with Wiemer and if he'll be able to make enough contact at the big league level to tap into his immense power, because there's no question about his power. When he connects, the ball goes a long ways.

Hunter Renfroe was shipped out to the Angels this offseason, seemingly clearing the deck for Wiemer to take over as the rightfielder of the future. He may not make the team out of spring training, but we're likely to see him at some point in 2023.