Graham Alexander has warned Motherwell not to start dreaming of Hampden and focus on Morton to ensure they don't "come a cropper" in the Scottish Cup.

The Steelmen take on the Championship side tomorrow night, knowing a quarter-final with Stranraer or Hibernian awaits the winners.

And with favourites Rangers and Celtic facing each other in a fourth round tie on Saturday, the competition has opened up a little for the rest of the field.

Motherwell's Scottish Cup clash against Morton has been moved
Motherwell will be big favourites for the tie

But the Fir Park boss insists no-one's minds will be straying from taking care of Gus MacPherson's men and he's warned they will have to work hard to get through.

He said: "The games are so intense and competitive now in any competition, that if you are not 100 per cent focused on the next game you are going to come a cropper, let yourself down and not get a result.

"The biggest thing for us tomorrow night is getting a result.

"I like to think people like Stephen O'Donnell, they understand the game, they understand our philosophy on how we approach games and they take that message through the squad as well, the leaders, the captains, the senior players.

"They understand it is about winning that next game and then taking what comes in front of you, not looking too far in front of you."When we have done that, it has hurt us when we've come off that focus.

"But gradually the squad are learning to focus on one game at a time and that's what we have to do tomorrow."

More sports news from across Lanarkshire

Motherwell earned their place in the last 16 with an emphatic 5-0 win over Highland League Formartine United earlier this month.

Allan Campbell drills home to make it 5-0

The scoreline was a handsome one, however it took the Steelmen more than half an hour to break down the part-timers and Alexander expects his side to show the same graft when the Cappielow men come calling.

He added: "We need to make sure, as we did in the last round, that our mentality is spot on.

"The last game, the 5-0 win, looked comfortable in the end but we had to work for 30-35 minutes to get that opening goal.

"But our mentality was good, we didn't get anything stupid away and after the first goal we were always in control of the game.

Motherwell manager Graham Alexander applauds the watching fans at Formartine

"We had to do the hard stuff first to make it look like a comfortable result, but it wasn't from the first minute.

"And that's what we'll have to do again tomorrow."

Motherwell will be without in-form Jordan Roberts, who was stretchered off after picking up a serious knee injury in last week's Premiership win over St Mirren, and the Hearts loanee is awaiting the results of a scan.

"He hasn't trained all week, so  Jordan will miss tomorrow," Alexander confirmed of the striker, who netted twice in the win over Formartine.

Jordan Roberts is treated for an injury during a Scottish Premiership match between Motherwell and St Mirren

"We are hopeful [it's not too serious]. It wasn't as sore as it was when he came off, so we are just waiting on that.

"But everyone else is fit and available."

All the latest sport news in Lanarkshire

Follow Lanarkshire Live Sport onTwitter via@LanLiveSport, like us onFacebookor find us onInstagramfor the latest sports news, pictures and video