Joe Gibbs Racing's Kyle Busch topped the opening 80-minute Nationwide Series practice at Phoenix International Raceway, while the honours in the 70-minute afternoon session went to JR Motorsports' Alex Bowman.

Busch's morning best was 27.096s (132.861mph) on the one-mile, low-banked tri-oval which put him nine hundredths of a second ahead of Richard Childress Racing's Ty Dillon. Busch's JGR team mate Erik Jones was third fastest in the session ahead of Regan Smith and his team mate Bowman.

Bowman leapt to the top of the timesheets in the later session, which benefited from the warmer conditions and greater grip enabling Bowman to set the fastest time of the day with a lap of 26.944s (133.610mph), just over three tenths of a second faster than Busch.

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Erik Jones repeated his third place of the morning practice, this time finishing ahead of RCR's Brendan Gaughan, Athenian Motorsports' John Wes Townley and Viva Motorsports' Brennan Newberry.

In the championship standings, Chase Elliott comes into Phoenix with a 48 point lead over his team mate Regan Smith. He was eighth fastest in the morning session, and held reasonably steady with ninth place after lunch.

Elliott Sadler was back in action behind the wheel of the JGR #11 Toyota after having to be replaced by Clint Bowyer out last week's race at Texas Motor Speedway because of a severe stomach big that left him seriously dehydrated and unable to drive. Fully recovered, Sadler set the seventh fastest time in the morning, and was 12th fastest in the afternoon.

Turner Scott Motorsports' Dylan Kwasniewski hit the wall in first session, doing sufficient damage to force the team to roll out the backup car for the rest of the weekend. He finished the session 11th fastest, and dropped to 18th place in the timings in the afternoon session, which saw only one caution for debris.

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