Polanco already has had three stints with the Twins this season. In his most recent stint, the 22-year-old shortstop hit his first big league home run while posting a .918 OPS in 23 plate appearances. The No. 91 overall prospect has continued to show some pop since returning to the Minors on May 23, hitting .353 (18-for-51) with seven extra-base hits in 13 games for Rochester.
Pitcher to watch: Joe Musgrove (Astros' No. 8), Fresno vs. El Paso (10:05 p.m. ET on MiLB.TV)
Musgrove is coming off of his worst start of the season on May 31, when he allowed four runs on nine hits in five innings against Albuquerque. However, the 23-year-old right-hander has been outstanding otherwise since his promotion to Triple-A Fresno, going 2-1 with a 3.13 ERA and a 20/3 strikeout-to-walk ratio in 23 innings (four starts) for the Grizzlies. Overall, Musgrove is 4-2 with a 1.64 ERA, a 1.01 WHIP and 50/9 strikeout-to-walk ratio in 49 1/3 innings (10 appearances/eight starts) this season between Double-A Corpus Christi and Fresno.
Hader, No. 56 on the Top 100, enters the day with a Southern League-leading 0.88 ERA after not allowing more than one earned run in any of his 10 starts for Biloxi. The 22-year-old southpaw is also pacing the circuit with his 32.5 percent strikeout rate -- 65 strikeouts in 51 innings -- and is second in the league with a 1.00 WHIP.
Not far behind Hader on the ERA leaderboard is Hu, who, in nine starts with Double-A Montgomery, has pitched to a 1.84 ERA in 49 innings. In his most recent outing, the 22-year-old Taiwan native recorded his fifth start of the season without an earned run allowed with five innings of five-hit ball against Jacksonville.
Monday's Top 100 prospect probables
No. 8 Tyler Glasnow (Pirates' No. 1), Indianapolis at Columbus (7:05 p.m. ET on MiLB.TV)
No. 15 Jose Berrios (Twins' No. 1), Rochester vs. Buffalo (7:05 p.m. ET on MiLB.TV)
No. 30 Robert Stephenson (Reds' No. 2), Louisville at Syracuse (6:35 p.m. ET on MiLB.TV)
No. 55 Tyler Jay (Twins' No. 3) vs. Keury Mella (Reds' No. 8), Fort Myers vs. Daytona (7:05 p.m. ET)
No. 71 Duane Underwood (Cubs' No. 4) vs. Andrew Thurman (Braves' No. 17), Tennessee at Mississippi (8:00 p.m. ET on MiLB.TV)
More top prospect probables
Ben Lively (Phillies' No. 30), Lehigh Valley at Gwinnett (AAA)
Austin Voth (Nationals' No. 9), Syracuse vs. Louisville (AAA)
Jaime Schultz (Rays' No. 18), Durham at Norfolk (AAA) Ty Blach (Giants' No. 23), Sacramento vs. Albuquerque (AAA)
Jordan Guerrero (White Sox No. 6) vs. Taylor Clarke (D-backs' No. 10), Birmingham vs. Mobile (AA)
Jake Esch (Marlins' No. 9), Jacksonville at Chattanooga (AA)
Keury Mella (Reds' No. 6), Daytona at Fort Myers (A Adv)
Cody Ponce (Brewers' No. 8), Brevard County vs. St. Lucie (A Adv)
Stephen Tarpley (Pirates' No. 19), Bradenton at Lakeland (A Adv)
Brandon Brennan (White Sox No. 20), Winston-Salem vs. Wilmington (A Adv)
Justin Anderson (Angels' No. 23), Inland Empire at Rancho Cucamonga (A Adv)
Yency Almonte (Rockies' No. 29), Modesto at Lancaster (A Adv)
Brett Graves (A's No. 30), Stockton vs. Visalia (A Adv)
Roniel Raudes (Red Sox's No. 14) vs. Luis Martinez (White Sox No. 29), Greenville at Kannapolis (A)
Chris Paddack (Marlins' No. 18), Greensboro at Hickory (A)
Joan Baez (Nationals' No. 18), Hagerstown at Asheville (A)
Ricardo Sanchez (Braves' No. 18), Rome vs. Charleston (A)
Nolan Watson (Royals' No. 5), Lexington at Lakewood (A)
Dario Agrazal (Pirates' No. 30), West Virginia vs. Delmarva (A)
Mike Rosenbaum is a reporter for MLB.com. Follow him on Twitter at @GoldenSombrero. This story was not subject to the approval of Major League Baseball or its clubs.