Leyton Orient v Tranmere preview

Russell Slade has a few injury worries.
Goalkeeper Jamie Jones failed a late fitness test on a shoulder problem ahead of last weekend’s 1-0 win over Carlisle and striker Scott McGleish is carrying a back injury.
Both will be assessed ahead of kick-off, although Slade has able deputies in Lee Butcher, who saved a penalty at Brunton Park, and Jonathan Tehoue who scored the winning goal.
Midfielder Jimmy Smith and striker Alex Revell will miss out again with knee injuries.
But defender Ben Chorley (thigh) and winger Paul-Jose Mpoku (ankle) have resumed training and could be involved along with full-back Andrew Whing, who missed out at Carlisle to be at the birth of his daughter.
Les Parry will again be without defender Mark McChrystal.
The centre-back will remain sidelined with the knock that ruled him out of the 4-0 home win over Exeter on Easter Monday.
Striker Enoch Showunmi’s season is over after a scan confirmed the tall target man has broken a fibula in his left leg.
However, midfielder Joss Labadie returns to the squad after completing a three-match suspension.
Rovers finally staved off the threat of relegation with the win over Exeter and Parry is convinced they can compete at the right end of the table next term.
He said: “We can start to think about next season now we are mathematically safe. Hopefully, we will be pushing for a promotion place.”