Nikola Kalinic must improve his training standards if he is to return to AC Milan's first-team fold, Gennaro Gattuso has warned.
Croatia striker Kalinic was excluded from Milan's 23-man matchday squad for the hard-earned 3-2 home win over Chievo on Sunday.
Andre Silva and fellow young forward Patrick Cutrone were both on target to further jeopardise Kalinic's hopes of reclaiming his place in attack.
The 30-year-old has only scored four competitive goals since his off-season move from Fiorentina and will need to find another gear to break back into the in-form Serie A side.
"The rules are the same for everyone. Whoever doesn't train well stays at home," Gattuso told Premium Sport.
"They need to put everything into the two hours of training. I want to see professionalism and commitment on the pitch.
"[But] tomorrow is another day and in football you cannot hold a grudge. At this moment I need everyone."
Milan had to come from behind to see off Chievo at San Siro after two quickfire strikes had overturned Hakan Calhanoglu's early opener.
An impressive second-half recovery saw them improve their league record to eight wins in nine and stay just five points shy of fourth-placed rivals Inter Milan.
However, a trip to Juventus after the international break will make for a stern examination of their progress under Gattuso.
"At the moment we can't make mistakes. If we want to fight for a Champions League place, draws don't do us any good," the Rossoneri boss said.
"We need to recover our energy and take things one game at a time."
|Bologna and Banvit seal Champions League play-off spots|
|LeBron James to miss Thunder & Rockets games but nearing practice return|
|Leganes 1 Real Madrid 0 (1-3 agg): Isco starts as Solari´s side go through despite defeat|
|NFL playoffs 2019: X-factor for each NFC team|
|Mahomes: Chiefs must not repeat mistakes against Patriots|
|Higuain´s Supercoppa benching due to virus, says Milan boss Gattuso|
|Brown fires back at Arians over ´diva´ comments|
|Stone heading home from West Indies tour with back injury|
|Shazier will continue rehab with intention of playing again|
|That´s why we signed him! Allegri hails Supercoppa match-winner Ronaldo|
|Monaco on worst home run in club´s history after Nice draw|
|Atletico Madrid 3 Girona 3 (4-4 agg): Simeone´s side out on away goals|
|Gregg Williams is Jets´ new defensive coordinator|
|Ronaldo: Supercoppa triumph just the start for Juve|
|Monaco confirm Batshuayi talks|
|You know more than me! Bielsa´s Barcelona research surprised Guardiola|
|Juventus 1 AC Milan 0: Ronaldo heads Bianconeri to Supercoppa glory|
|Kane injury cannot be excuse for Tottenham – Pochettino|
|Woods to open 2019 schedule at Torrey Pines|
|Reported Liverpool target Dabbur to undergo Sevilla medical|
|Lebanon v North Korea: Radulovic calls on players to make history|
|MLS MVP Martinez signs five-year contract with Atlanta|
|WBC set deadline for Wilder-Fury rematch|
|Iran 0 Iraq 0: Team Melli top Group D after dull draw|
|Vietnam 2 Yemen 0: Quang Hai shines to give Golden Dragons hope|
|Bielsa admits to spying on all Leeds´ opponents|
|Valverde open to arrivals amid De Jong tug-of-war|
|Sexton named in Ireland squad for Six Nations openers|
|Higuain benched for Supercoppa Italiana amid Chelsea links|
|De Grandhomme, Latham and Santner back in Black Caps squad|
|Oman v Turkmenistan: Verbeek tells players to ´score as many as possible´|
|Japan v Uzbekistan: Cuper not distracted by potential last-16 opponents|
|Brown desperate for England recall|
|Lowry ties course record in Abu Dhabi|
|James is playing for Bayern future – Kovac|
|Wizards can compete for playoffs in LeBron-less East despite injuries - Brooks|
|Kyrgyzstan 3 Philippines 1: Lux hat-trick gives White Falcons third-place hope|
|South Korea 2 China 0: Son sets the standard as Bento´s men take top spot|
|Saudi Arabia v Qatar: Top spot on the line in Group E|
|Wasps pull off Fekitoa coup|
|Fresh injury woe for Real Madrid defender Vallejo|
|Home sweet home for Wozniacki as Stephens conquers Melbourne demons|
|Nadal: Victory over Ebden a step forward|
|Proteas rest Steyn and De Kock for opening ODIs|
|Nadal and Federer march on as rising stars prosper|
|Barcelona president Bartomeu convinced Valverde will stay|
|Inter forward Keita suffers thigh injury|
|Nadal races into third round with easy Ebden win|
|Kimmich ´perfect´ for Barcelona, says Xavi|
|Richardson and Nabi inspire Renegades´ rout of Sixers|
|This Liverpool isn´t a team of chokers – Mane|
|Central Coast Mariners 2 Melbourne City 1: Late Simon winner ends 10-match losing streak|
|Bryan backs Murray to return after hip resurfacing surgery|
|Scotland coach Townsend turns to trio of uncapped hookers|
|Spurs´ Aurier arrested on suspicion of assault, released without charge|
|That was a fireworks show - Warriors revel in record-breaking first quarter|
|We are in talks with Chelsea – Salihamidzic reiterates interest in Hudson-Odoi|
|´Proud´ Messi recognises impact of team-mates after reaching 400 LaLiga goals|
|Henry v Vieira: The Arsene Wenger proteges to move into coaching|
|Federer enjoys ´cat and mouse´ win over Evans|
|Wozniacki cruises through in Melbourne|
|Federer maintains perfect Australian Open second-round record|
|Warriors set NBA record, Butler´s 76ers rout Timberwolves|
|´I like the fact we beat them´ - 76ers´ Butler revels in win over Timberwolves|
|Murray says he´ll ´probably´ have operation|
|Australian Open tribute for Andy Murray surprises brother Jamie|
|Warriors score NBA record 51 points in first quarter against Nuggets|
|Panthers owner Tepper doesn´t rule out Newton missing 2019 because of shoulder injury|
|De Ligt will be world´s best centre-back – Koeman|
|Ronaldo a ´perfect machine´, says Gattuso|