MILWAUKEE -- While Brewers officials continue to mull their immediate options at second base, they appear to have two good ones climbing the Minor League ladder.
Milwaukee's Keston Hiura ranked third and Isan Diaz was fourth on MLB Pipeline's list of the top second-base prospects in baseball, as unveiled Monday. The Brewers duo trailed only Scott Kingery of the Phillies and Luis Urias of the Padres in rankings at the keystone corner.
:: Top 10 Prospects by Position ::
Hiura, 21, was the ninth player taken overall in the 2017 MLB Draft. He played for the Brewers' Rookie League team and at Class A Wisconsin while rehabbing a pre-existing elbow injury and impressed with his bat, hitting .371/.422/.611 with 14 doubles, seven triples and four home runs in 187 plate appearances between the two affiliates. He is currently Milwaukee's No. 5 prospect, per MLB Pipeline.
One step further along in his professional development is Diaz, who is also 21 but has four Minor League seasons in the books, including two with the Brewers. Milwaukee acquired him in the same multiplayer trade with the D-backs that brought right-hander Chase Anderson and infielder Aaron Hill, and Diaz made an immediate impact in 2016 by winning Brewers Minor League Player of the Year honors after hitting 20 homers and posting an .827 OPS at Wisconsin. He moved up to Class A Advanced Carolina in 2017 and slashed .222/.334/.376 with 13 home runs.

Diaz is likely to jump to Double-A Biloxi in 2018. Hiura's plan could depend in part on his health; he avoided elbow surgery and resumed throwing by season's end before participating in the Brewers' fall instructional league. Last week he was among the prospects invited to the Brewers' Major League Spring Training camp.