Walker is 6-for-9 with seven RBIs over the past two days after going 3-for-4 with five RBIs in a win over Tacoma on Sunday. The 26-year-old has driven in runs all year as he leads the Pacific Coast League with 76 RBIs through 72 games, but the hits have started to pile up lately as well. After hitting .255 in 28 games in May, Walker is batting .337 through 21 games in June.
Pitcher to watch: Taylor Clarke (D-backs No. 5), Jackson vs. Jacksonville (1:05 p.m. ET on MiLB.TV)
Clarke has a chance to pick up his third win this month, which would be the most games he's won in a month this season. The 24-year-old is 2-1 with a 3.43 ERA through four starts in June and is coming off a solid outing in which he gave up two runs on four hits in five innings.
Allard, the No. 45 overall prospect, gets back on the mound giving up just one run in his last outing. Allard, 19, skipped the Class A Advanced level, but has pitched just fine at Double-A, posting a 2.81 ERA through 14 starts. The lefty hit a bit of a rough patch in early June, but appears to have gotten back on track in his most recent outing.
Ortiz, the No. 53 overall prospect, is looking to extend his scoreless streak past 10 innings. The 21-year-old didn't give up a run in either of his past two starts, but hasn't pitched since June 8 as he was placed on the disabled list the next day. Ortiz has won his past three decisions and has a 3.02 ERA through 11 starts.
Monday's Top 100 prospect probables
No. 75 overall Ian Anderson (Braves' No. 6), Rome vs. Charleston (7 p.m. ET on MiLB.TV)
More top prospect probables Adam Plutko (Indians' No. 14), Columbus vs. Charlotte (Triple-A) Paul Blackburn (Athletics' No. 22), Nashville vs. Round Rock (Triple-A) Frank Duncan (D-backs' No. 24), Reno vs. Salt Lake (Triple-A)
Jordan Stephens (White Sox No. 14), Birmingham vs. Montgomery (Double-A)
Francisco Rios (Blue Jays' No. 18), New Hampshire vs. Portland (Double-A)
Trey Ball (Red Sox's No. 29), Portland vs. New Hampshire (Double-A)
Sam Coonrod (Giants' No. 11), Richmond vs. Trenton (Double-A)
Domingo Acevedo (Yankees' No. 12), Trenton vs. Richmond (Double-A)
David Hess (Orioles' No. 27), Bowie vs. Altoona (Double-A)
P.J. Conlon (Mets' No. 22), Binghamton vs. Hartford (Double-A)
Artie Lewicki (Tigers' No. 21), Erie vs. Akron (Double-A)
Luis Lugo (Indians' No. 30), Akron vs. Erie (Double-A) Marcos Diplan (Brewers' No. 11), Carolina vs. Buies Creek (Class A Advanced)
Jorge Alcala (Astros' No. 29), Buies Creek vs. Carolina (Class A Advanced)
Cody Sedlock (Orioles' No. 2), Frederick vs. Wilmington (Class A Advanced)
Alec Hansen (White Sox No. 10), Winston-Salem vs. Down East (Class A Advanced)
Jonathan Hernandez (Rangers' No. 18), Down East vs. Winston-Salem (Class A Advanced)
Shaun Anderson (Red Sox's No. 17), Salem vs. Lynchburg (Class A Advanced)
Peter Lambert (Rockies' No. 6), Lancaster vs. Inland Empire (Class A Advanced)
Nick Neidert (Mariners' No. 3), Modesto vs. Visalia (Class A Advanced)
Tony Santillan (Reds' No. 14), Dayton vs. West Michigan (Class A)
Micah Miniard (Indians' No. 28), Lake County vs. Great Lakes (Class A) Luis Martinez (White Sox No. 22), Kannapolis vs. Hickory (Class A)
Mack Lemieux (D-backs' No. 20), Kane County vs. Clinton (Class A)
Jordan Hicks (Cardinals' No. 18), Peoria vs. Beloit (Class A)
Cionel Perez (Astros' No. 16), Quad Cities vs. Wisconsin (Class A) Jorge Guzman (Yankees' No. 25), Staten Island vs. Aberdeen (Class A Short Season)
Sam Perez (Marlins' No. 16), Batavia vs. West Virginia (Class A Short Season)
Johan Oviedo (Cardinals' No. 26), Johnson City vs. Kingsport (Rookie)
Griffin Jax (Twins' No. 30), Elizabethton vs. Pulaski (Rookie)
William Boor is a reporter for MLBPipeline.com. Follow him on Twitter at @wboor. This story was not subject to the approval of Major League Baseball or its clubs.