PHOENIX -- Salt River third baseman Nolan Arenado (COL) and Surprise left-handed starting pitcher Miguel De Los Santos (TEX) are the Arizona Fall League's week four Player and Pitcher of the Week, respectively.

Player of the Week
The 20-year-old Arenado hit .429 (9-for-21) last week with 3 doubles, 3 home runs, 5 RBI and 4 runs.

Among league leaders in most offensive categories, the Newport Beach, Calif. native leads the Fall League in RBIs (24) and is tied for the lead in extra-base hits (11), ranks second in hits (29), batting (.392) and total bases (50), third in slugging percentage (.767) and is tied for fourth in home runs (five). He has hit safely in 16 of his 17 appearances with at least one RBI in 13 of those games.

The 6-1, 205-pounder was the Rockies' second-round (59th overall) selection in the 2009 Draft. He spent 2011 at Class A Advanced Modesto where he hit .298 with 20 home runs and led the Minor Leagues with 122 RBIs.

He is a .302 hitter over three Minor League seasons with 34 home runs and 209 RBIs.

Pitcher of the Week
The 23-year-old lefty from La Romana, Dominican Republic was 2-0 in as many starts last week with a 3.00 ERA while allowing only six hits and two walks with 13 strikeouts over nine innings.

Last Saturday, he started and pitched the first five innings of the Arizona Fall League's first one-hit shutout since 2007, combining with four relievers to accomplish the rarity. De Los Santos recorded eight strikeouts in the game, which shares the Fall League single-game high this season.

The 6-foot-1, 205-pounder had 20 outings in 2011 between Class A Advanced Myrtle Beach (13 games), Double-A Frisco (6 games) and the rookie-level Arizona League (1 game), combining for a 7-6 record. Over six Minor League seasons, he is 12-13 with a 3.58 ERA and 434 strikeouts in 274 innings.

Other Nominees
Mesa OF Xavier Avery (BAL), Phoenix RHP Cory Burns (CLE), Mesa OF Aaron Hicks (MIN), Surprise RHP Jeremy Jeffress (KC), Mesa RHP Steve Johnson (BAL), Mesa RHP Brandon Kloess (CWS), Surprise OF Wil Myers (KC), Mesa OF Brandon Short (CWS) and Scottsdale LHP Sammy Solis (WSH) also were nominated.

Arizona Fall League
Known throughout professional baseball as a finishing school for Major League Baseball's elite prospects, the Arizona Fall League is a six-team league owned and operated by MLB. It plays six days per week (Monday-Saturday) at six Spring Training stadiums in the Phoenix metropolitan area. Salt River Fields at Talking Stick (Salt River Rafters) is the league's newest venue, joining five returning sites: Mesa HoHoKam Stadium (Mesa Solar Sox), Peoria Sports complex (Peoria Javelinas), Phoenix Municipal Stadium (Phoenix Desert Dogs), Scottsdale Stadium (Scottsdale Scorpions) and Surprise Stadium (Surprise Saguaros).

This year's schedule features the sixth annual Rising Stars Game this Saturday, Nov. 5 at Surprise Stadium, the United Concordia Dental Military Appreciation Game on Friday, Nov. 11, and the annual championship game on Saturday, Nov. 19 at Scottsdale Stadium. All three games will be televised by the MLB Network and online via MLB.com.